280364240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:361

約数の個数: 120

約数和(自身を含む): 716840280

約数和(自身を除く): 436476040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 89, 104, 130, 169, 178, 208, 233, 260, 338, 356, 445, 466, 520, 676, 712, 845, 890, 932, 1040, 1157, 1165, 1352, 1424, 1690, 1780, 1864, 2314, 2330, 2704, 3029, 3380, 3560, 3728, 4628, 4660, 5785, 6058, 6760, 7120, 9256, 9320, 11570, 12116, 13520, 15041, 15145, 18512, 18640, 20737, 23140, 24232, 30082, 30290, 39377, 41474, 46280, 48464, 60164, 60580, 75205, 78754, 82948, 92560, 103685, 120328, 121160, 150410, 157508, 165896, 196885, 207370, 240656, 242320, 269581, 300820, 315016, 331792, 393770, 414740, 539162, 601640, 630032, 787540, 829480, 1078324, 1203280, 1347905, 1575080, 1658960, 2156648, 2695810, 3150160, 3504553, 4313296, 5391620, 7009106, 10783240, 14018212, 17522765, 21566480, 28036424, 35045530, 56072848, 70091060, 140182120, 280364240]

約数ペア:

[(1, 280364240), (2, 140182120), (4, 70091060), (5, 56072848), (8, 35045530), (10, 28036424), (13, 21566480), (16, 17522765), (20, 14018212), (26, 10783240), (40, 7009106), (52, 5391620), (65, 4313296), (80, 3504553), (89, 3150160), (104, 2695810), (130, 2156648), (169, 1658960), (178, 1575080), (208, 1347905), (233, 1203280), (260, 1078324), (338, 829480), (356, 787540), (445, 630032), (466, 601640), (520, 539162), (676, 414740), (712, 393770), (845, 331792), (890, 315016), (932, 300820), (1040, 269581), (1157, 242320), (1165, 240656), (1352, 207370), (1424, 196885), (1690, 165896), (1780, 157508), (1864, 150410), (2314, 121160), (2330, 120328), (2704, 103685), (3029, 92560), (3380, 82948), (3560, 78754), (3728, 75205), (4628, 60580), (4660, 60164), (5785, 48464), (6058, 46280), (6760, 41474), (7120, 39377), (9256, 30290), (9320, 30082), (11570, 24232), (12116, 23140), (13520, 20737), (15041, 18640), (15145, 18512)]