81101280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:389

約数の個数: 192

約数和(自身を含む): 282719808

約数和(自身を除く): 201618528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 41, 48, 52, 60, 65, 78, 80, 82, 96, 104, 120, 123, 130, 156, 160, 164, 195, 205, 208, 240, 246, 260, 312, 317, 328, 390, 410, 416, 480, 492, 520, 533, 615, 624, 634, 656, 780, 820, 951, 984, 1040, 1066, 1230, 1248, 1268, 1312, 1560, 1585, 1599, 1640, 1902, 1968, 2080, 2132, 2460, 2536, 2665, 3120, 3170, 3198, 3280, 3804, 3936, 4121, 4264, 4755, 4920, 5072, 5330, 6240, 6340, 6396, 6560, 7608, 7995, 8242, 8528, 9510, 9840, 10144, 10660, 12363, 12680, 12792, 12997, 15216, 15990, 16484, 17056, 19020, 19680, 20605, 21320, 24726, 25360, 25584, 25994, 30432, 31980, 32968, 38040, 38991, 41210, 42640, 49452, 50720, 51168, 51988, 61815, 63960, 64985, 65936, 76080, 77982, 82420, 85280, 98904, 103976, 123630, 127920, 129970, 131872, 152160, 155964, 164840, 168961, 194955, 197808, 207952, 247260, 255840, 259940, 311928, 329680, 337922, 389910, 395616, 415904, 494520, 506883, 519880, 623856, 659360, 675844, 779820, 844805, 989040, 1013766, 1039760, 1247712, 1351688, 1559640, 1689610, 1978080, 2027532, 2079520, 2534415, 2703376, 3119280, 3379220, 4055064, 5068830, 5406752, 6238560, 6758440, 8110128, 10137660, 13516880, 16220256, 20275320, 27033760, 40550640, 81101280]

約数ペア:

[(1, 81101280), (2, 40550640), (3, 27033760), (4, 20275320), (5, 16220256), (6, 13516880), (8, 10137660), (10, 8110128), (12, 6758440), (13, 6238560), (15, 5406752), (16, 5068830), (20, 4055064), (24, 3379220), (26, 3119280), (30, 2703376), (32, 2534415), (39, 2079520), (40, 2027532), (41, 1978080), (48, 1689610), (52, 1559640), (60, 1351688), (65, 1247712), (78, 1039760), (80, 1013766), (82, 989040), (96, 844805), (104, 779820), (120, 675844), (123, 659360), (130, 623856), (156, 519880), (160, 506883), (164, 494520), (195, 415904), (205, 395616), (208, 389910), (240, 337922), (246, 329680), (260, 311928), (312, 259940), (317, 255840), (328, 247260), (390, 207952), (410, 197808), (416, 194955), (480, 168961), (492, 164840), (520, 155964), (533, 152160), (615, 131872), (624, 129970), (634, 127920), (656, 123630), (780, 103976), (820, 98904), (951, 85280), (984, 82420), (1040, 77982), (1066, 76080), (1230, 65936), (1248, 64985), (1268, 63960), (1312, 61815), (1560, 51988), (1585, 51168), (1599, 50720), (1640, 49452), (1902, 42640), (1968, 41210), (2080, 38991), (2132, 38040), (2460, 32968), (2536, 31980), (2665, 30432), (3120, 25994), (3170, 25584), (3198, 25360), (3280, 24726), (3804, 21320), (3936, 20605), (4121, 19680), (4264, 19020), (4755, 17056), (4920, 16484), (5072, 15990), (5330, 15216), (6240, 12997), (6340, 12792), (6396, 12680), (6560, 12363), (7608, 10660), (7995, 10144), (8242, 9840), (8528, 9510)]