71209840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:291

約数の個数: 120

約数和(自身を含む): 187889760

約数和(自身を除く): 116679920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 169, 184, 208, 229, 230, 260, 299, 338, 368, 458, 460, 520, 598, 676, 845, 916, 920, 1040, 1145, 1196, 1352, 1495, 1690, 1832, 1840, 2290, 2392, 2704, 2977, 2990, 3380, 3664, 3887, 4580, 4784, 5267, 5954, 5980, 6760, 7774, 9160, 10534, 11908, 11960, 13520, 14885, 15548, 18320, 19435, 21068, 23816, 23920, 26335, 29770, 31096, 38701, 38870, 42136, 47632, 52670, 59540, 62192, 68471, 77402, 77740, 84272, 105340, 119080, 136942, 154804, 155480, 193505, 210680, 238160, 273884, 309608, 310960, 342355, 387010, 421360, 547768, 619216, 684710, 774020, 890123, 1095536, 1369420, 1548040, 1780246, 2738840, 3096080, 3560492, 4450615, 5477680, 7120984, 8901230, 14241968, 17802460, 35604920, 71209840]

約数ペア:

[(1, 71209840), (2, 35604920), (4, 17802460), (5, 14241968), (8, 8901230), (10, 7120984), (13, 5477680), (16, 4450615), (20, 3560492), (23, 3096080), (26, 2738840), (40, 1780246), (46, 1548040), (52, 1369420), (65, 1095536), (80, 890123), (92, 774020), (104, 684710), (115, 619216), (130, 547768), (169, 421360), (184, 387010), (208, 342355), (229, 310960), (230, 309608), (260, 273884), (299, 238160), (338, 210680), (368, 193505), (458, 155480), (460, 154804), (520, 136942), (598, 119080), (676, 105340), (845, 84272), (916, 77740), (920, 77402), (1040, 68471), (1145, 62192), (1196, 59540), (1352, 52670), (1495, 47632), (1690, 42136), (1832, 38870), (1840, 38701), (2290, 31096), (2392, 29770), (2704, 26335), (2977, 23920), (2990, 23816), (3380, 21068), (3664, 19435), (3887, 18320), (4580, 15548), (4784, 14885), (5267, 13520), (5954, 11960), (5980, 11908), (6760, 10534), (7774, 9160)]