311981280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 288

約数和(自身を含む): 1130752224

約数和(自身を除く): 818770944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 65, 68, 78, 80, 85, 96, 102, 104, 120, 130, 136, 156, 160, 170, 173, 195, 204, 208, 221, 240, 255, 260, 272, 289, 312, 340, 346, 390, 408, 416, 442, 480, 510, 519, 520, 544, 578, 624, 663, 680, 692, 780, 816, 865, 867, 884, 1020, 1038, 1040, 1105, 1156, 1248, 1326, 1360, 1384, 1445, 1560, 1632, 1730, 1734, 1768, 2040, 2076, 2080, 2210, 2249, 2312, 2595, 2652, 2720, 2768, 2890, 2941, 3120, 3315, 3460, 3468, 3536, 3757, 4080, 4152, 4335, 4420, 4498, 4624, 5190, 5304, 5536, 5780, 5882, 6240, 6630, 6747, 6920, 6936, 7072, 7514, 8160, 8304, 8670, 8823, 8840, 8996, 9248, 10380, 10608, 11245, 11271, 11560, 11764, 13260, 13494, 13840, 13872, 14705, 15028, 16608, 17340, 17646, 17680, 17992, 18785, 20760, 21216, 22490, 22542, 23120, 23528, 26520, 26988, 27680, 27744, 29410, 30056, 33735, 34680, 35292, 35360, 35984, 37570, 38233, 41520, 44115, 44980, 45084, 46240, 47056, 49997, 53040, 53976, 56355, 58820, 60112, 67470, 69360, 70584, 71968, 75140, 76466, 83040, 88230, 89960, 90168, 94112, 99994, 106080, 107952, 112710, 114699, 117640, 120224, 134940, 138720, 141168, 149991, 150280, 152932, 176460, 179920, 180336, 191165, 199988, 215904, 225420, 229398, 235280, 249985, 269880, 282336, 299982, 300560, 305864, 352920, 359840, 360672, 382330, 399976, 450840, 458796, 470560, 499970, 539760, 573495, 599964, 601120, 611728, 649961, 705840, 749955, 764660, 799952, 901680, 917592, 999940, 1079520, 1146990, 1199928, 1223456, 1299922, 1411680, 1499910, 1529320, 1599904, 1803360, 1835184, 1949883, 1999880, 2293980, 2399856, 2599844, 2999820, 3058640, 3249805, 3670368, 3899766, 3999760, 4587960, 4799712, 5199688, 5999640, 6117280, 6499610, 7799532, 7999520, 9175920, 9749415, 10399376, 11999280, 12999220, 15599064, 18351840, 19498830, 20798752, 23998560, 25998440, 31198128, 38997660, 51996880, 62396256, 77995320, 103993760, 155990640, 311981280]

約数ペア:

[(1, 311981280), (2, 155990640), (3, 103993760), (4, 77995320), (5, 62396256), (6, 51996880), (8, 38997660), (10, 31198128), (12, 25998440), (13, 23998560), (15, 20798752), (16, 19498830), (17, 18351840), (20, 15599064), (24, 12999220), (26, 11999280), (30, 10399376), (32, 9749415), (34, 9175920), (39, 7999520), (40, 7799532), (48, 6499610), (51, 6117280), (52, 5999640), (60, 5199688), (65, 4799712), (68, 4587960), (78, 3999760), (80, 3899766), (85, 3670368), (96, 3249805), (102, 3058640), (104, 2999820), (120, 2599844), (130, 2399856), (136, 2293980), (156, 1999880), (160, 1949883), (170, 1835184), (173, 1803360), (195, 1599904), (204, 1529320), (208, 1499910), (221, 1411680), (240, 1299922), (255, 1223456), (260, 1199928), (272, 1146990), (289, 1079520), (312, 999940), (340, 917592), (346, 901680), (390, 799952), (408, 764660), (416, 749955), (442, 705840), (480, 649961), (510, 611728), (519, 601120), (520, 599964), (544, 573495), (578, 539760), (624, 499970), (663, 470560), (680, 458796), (692, 450840), (780, 399976), (816, 382330), (865, 360672), (867, 359840), (884, 352920), (1020, 305864), (1038, 300560), (1040, 299982), (1105, 282336), (1156, 269880), (1248, 249985), (1326, 235280), (1360, 229398), (1384, 225420), (1445, 215904), (1560, 199988), (1632, 191165), (1730, 180336), (1734, 179920), (1768, 176460), (2040, 152932), (2076, 150280), (2080, 149991), (2210, 141168), (2249, 138720), (2312, 134940), (2595, 120224), (2652, 117640), (2720, 114699), (2768, 112710), (2890, 107952), (2941, 106080), (3120, 99994), (3315, 94112), (3460, 90168), (3468, 89960), (3536, 88230), (3757, 83040), (4080, 76466), (4152, 75140), (4335, 71968), (4420, 70584), (4498, 69360), (4624, 67470), (5190, 60112), (5304, 58820), (5536, 56355), (5780, 53976), (5882, 53040), (6240, 49997), (6630, 47056), (6747, 46240), (6920, 45084), (6936, 44980), (7072, 44115), (7514, 41520), (8160, 38233), (8304, 37570), (8670, 35984), (8823, 35360), (8840, 35292), (8996, 34680), (9248, 33735), (10380, 30056), (10608, 29410), (11245, 27744), (11271, 27680), (11560, 26988), (11764, 26520), (13260, 23528), (13494, 23120), (13840, 22542), (13872, 22490), (14705, 21216), (15028, 20760), (16608, 18785), (17340, 17992), (17646, 17680)]