87171240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:236

約数の個数: 256

約数和(自身を含む): 315705600

約数和(自身を除く): 228534360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 19, 20, 24, 26, 30, 34, 38, 39, 40, 51, 52, 57, 60, 65, 68, 76, 78, 85, 95, 102, 104, 114, 120, 130, 136, 152, 156, 170, 173, 190, 195, 204, 221, 228, 247, 255, 260, 285, 312, 323, 340, 346, 380, 390, 408, 442, 456, 494, 510, 519, 520, 570, 646, 663, 680, 692, 741, 760, 780, 865, 884, 969, 988, 1020, 1038, 1105, 1140, 1235, 1292, 1326, 1384, 1482, 1560, 1615, 1730, 1768, 1938, 1976, 2040, 2076, 2210, 2249, 2280, 2470, 2584, 2595, 2652, 2941, 2964, 3230, 3287, 3315, 3460, 3705, 3876, 4152, 4199, 4420, 4498, 4845, 4940, 5190, 5304, 5882, 5928, 6460, 6574, 6630, 6747, 6920, 7410, 7752, 8398, 8823, 8840, 8996, 9690, 9861, 9880, 10380, 11245, 11764, 12597, 12920, 13148, 13260, 13494, 14705, 14820, 16435, 16796, 17646, 17992, 19380, 19722, 20760, 20995, 22490, 23528, 25194, 26296, 26520, 26988, 29410, 29640, 32870, 33592, 33735, 35292, 38233, 38760, 39444, 41990, 42731, 44115, 44980, 49305, 50388, 53976, 55879, 58820, 62985, 65740, 67470, 70584, 76466, 78888, 83980, 85462, 88230, 89960, 98610, 100776, 111758, 114699, 117640, 125970, 128193, 131480, 134940, 152932, 167637, 167960, 170924, 176460, 191165, 197220, 213655, 223516, 229398, 251940, 256386, 269880, 279395, 305864, 335274, 341848, 352920, 382330, 394440, 427310, 447032, 458796, 503880, 512772, 558790, 573495, 640965, 670548, 726427, 764660, 838185, 854620, 917592, 1025544, 1117580, 1146990, 1281930, 1341096, 1452854, 1529320, 1676370, 1709240, 2179281, 2235160, 2293980, 2563860, 2905708, 3352740, 3632135, 4358562, 4587960, 5127720, 5811416, 6705480, 7264270, 8717124, 10896405, 14528540, 17434248, 21792810, 29057080, 43585620, 87171240]

約数ペア:

[(1, 87171240), (2, 43585620), (3, 29057080), (4, 21792810), (5, 17434248), (6, 14528540), (8, 10896405), (10, 8717124), (12, 7264270), (13, 6705480), (15, 5811416), (17, 5127720), (19, 4587960), (20, 4358562), (24, 3632135), (26, 3352740), (30, 2905708), (34, 2563860), (38, 2293980), (39, 2235160), (40, 2179281), (51, 1709240), (52, 1676370), (57, 1529320), (60, 1452854), (65, 1341096), (68, 1281930), (76, 1146990), (78, 1117580), (85, 1025544), (95, 917592), (102, 854620), (104, 838185), (114, 764660), (120, 726427), (130, 670548), (136, 640965), (152, 573495), (156, 558790), (170, 512772), (173, 503880), (190, 458796), (195, 447032), (204, 427310), (221, 394440), (228, 382330), (247, 352920), (255, 341848), (260, 335274), (285, 305864), (312, 279395), (323, 269880), (340, 256386), (346, 251940), (380, 229398), (390, 223516), (408, 213655), (442, 197220), (456, 191165), (494, 176460), (510, 170924), (519, 167960), (520, 167637), (570, 152932), (646, 134940), (663, 131480), (680, 128193), (692, 125970), (741, 117640), (760, 114699), (780, 111758), (865, 100776), (884, 98610), (969, 89960), (988, 88230), (1020, 85462), (1038, 83980), (1105, 78888), (1140, 76466), (1235, 70584), (1292, 67470), (1326, 65740), (1384, 62985), (1482, 58820), (1560, 55879), (1615, 53976), (1730, 50388), (1768, 49305), (1938, 44980), (1976, 44115), (2040, 42731), (2076, 41990), (2210, 39444), (2249, 38760), (2280, 38233), (2470, 35292), (2584, 33735), (2595, 33592), (2652, 32870), (2941, 29640), (2964, 29410), (3230, 26988), (3287, 26520), (3315, 26296), (3460, 25194), (3705, 23528), (3876, 22490), (4152, 20995), (4199, 20760), (4420, 19722), (4498, 19380), (4845, 17992), (4940, 17646), (5190, 16796), (5304, 16435), (5882, 14820), (5928, 14705), (6460, 13494), (6574, 13260), (6630, 13148), (6747, 12920), (6920, 12597), (7410, 11764), (7752, 11245), (8398, 10380), (8823, 9880), (8840, 9861), (8996, 9690)]