1320784400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:338

約数の個数: 240

約数和(自身を含む): 3688763904

約数和(自身を除く): 2367979504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 34, 40, 50, 52, 65, 67, 68, 80, 85, 100, 104, 130, 134, 136, 170, 200, 208, 221, 223, 260, 268, 272, 325, 335, 340, 400, 425, 442, 446, 520, 536, 650, 670, 680, 850, 871, 884, 892, 1040, 1072, 1105, 1115, 1139, 1300, 1340, 1360, 1675, 1700, 1742, 1768, 1784, 2210, 2230, 2278, 2600, 2680, 2899, 3350, 3400, 3484, 3536, 3568, 3791, 4355, 4420, 4460, 4556, 5200, 5360, 5525, 5575, 5695, 5798, 6700, 6800, 6968, 7582, 8710, 8840, 8920, 9112, 11050, 11150, 11390, 11596, 13400, 13936, 14495, 14807, 14941, 15164, 17420, 17680, 17840, 18224, 18955, 21775, 22100, 22300, 22780, 23192, 26800, 28475, 28990, 29614, 29882, 30328, 34840, 37910, 43550, 44200, 44600, 45560, 46384, 49283, 56950, 57980, 59228, 59764, 60656, 69680, 72475, 74035, 74705, 75820, 87100, 88400, 89200, 91120, 94775, 98566, 113900, 115960, 118456, 119528, 144950, 148070, 149410, 151640, 174200, 189550, 194233, 197132, 227800, 231920, 236912, 239056, 246415, 253997, 289900, 296140, 298820, 303280, 348400, 370175, 373525, 379100, 388466, 394264, 455600, 492830, 507994, 579800, 592280, 597640, 740350, 747050, 758200, 776932, 788528, 971165, 985660, 1015988, 1159600, 1184560, 1195280, 1232075, 1269985, 1480700, 1494100, 1516400, 1553864, 1942330, 1971320, 2031976, 2464150, 2539970, 2961400, 2988200, 3107728, 3301961, 3884660, 3942640, 4063952, 4855825, 4928300, 5079940, 5922800, 5976400, 6349925, 6603922, 7769320, 9711650, 9856600, 10159880, 12699850, 13207844, 15538640, 16509805, 19423300, 19713200, 20319760, 25399700, 26415688, 33019610, 38846600, 50799400, 52831376, 66039220, 77693200, 82549025, 101598800, 132078440, 165098050, 264156880, 330196100, 660392200, 1320784400]

約数ペア:

[(1, 1320784400), (2, 660392200), (4, 330196100), (5, 264156880), (8, 165098050), (10, 132078440), (13, 101598800), (16, 82549025), (17, 77693200), (20, 66039220), (25, 52831376), (26, 50799400), (34, 38846600), (40, 33019610), (50, 26415688), (52, 25399700), (65, 20319760), (67, 19713200), (68, 19423300), (80, 16509805), (85, 15538640), (100, 13207844), (104, 12699850), (130, 10159880), (134, 9856600), (136, 9711650), (170, 7769320), (200, 6603922), (208, 6349925), (221, 5976400), (223, 5922800), (260, 5079940), (268, 4928300), (272, 4855825), (325, 4063952), (335, 3942640), (340, 3884660), (400, 3301961), (425, 3107728), (442, 2988200), (446, 2961400), (520, 2539970), (536, 2464150), (650, 2031976), (670, 1971320), (680, 1942330), (850, 1553864), (871, 1516400), (884, 1494100), (892, 1480700), (1040, 1269985), (1072, 1232075), (1105, 1195280), (1115, 1184560), (1139, 1159600), (1300, 1015988), (1340, 985660), (1360, 971165), (1675, 788528), (1700, 776932), (1742, 758200), (1768, 747050), (1784, 740350), (2210, 597640), (2230, 592280), (2278, 579800), (2600, 507994), (2680, 492830), (2899, 455600), (3350, 394264), (3400, 388466), (3484, 379100), (3536, 373525), (3568, 370175), (3791, 348400), (4355, 303280), (4420, 298820), (4460, 296140), (4556, 289900), (5200, 253997), (5360, 246415), (5525, 239056), (5575, 236912), (5695, 231920), (5798, 227800), (6700, 197132), (6800, 194233), (6968, 189550), (7582, 174200), (8710, 151640), (8840, 149410), (8920, 148070), (9112, 144950), (11050, 119528), (11150, 118456), (11390, 115960), (11596, 113900), (13400, 98566), (13936, 94775), (14495, 91120), (14807, 89200), (14941, 88400), (15164, 87100), (17420, 75820), (17680, 74705), (17840, 74035), (18224, 72475), (18955, 69680), (21775, 60656), (22100, 59764), (22300, 59228), (22780, 57980), (23192, 56950), (26800, 49283), (28475, 46384), (28990, 45560), (29614, 44600), (29882, 44200), (30328, 43550), (34840, 37910)]