64991680

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{919}}^1$

素因数の和:966

約数の個数: 112

約数和(自身を含む): 176662080

約数和(自身を除く): 111670400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 130, 136, 160, 170, 208, 221, 260, 272, 320, 340, 416, 442, 520, 544, 680, 832, 884, 919, 1040, 1088, 1105, 1360, 1768, 1838, 2080, 2210, 2720, 3536, 3676, 4160, 4420, 4595, 5440, 7072, 7352, 8840, 9190, 11947, 14144, 14704, 15623, 17680, 18380, 23894, 29408, 31246, 35360, 36760, 47788, 58816, 59735, 62492, 70720, 73520, 78115, 95576, 119470, 124984, 147040, 156230, 191152, 203099, 238940, 249968, 294080, 312460, 382304, 406198, 477880, 499936, 624920, 764608, 812396, 955760, 999872, 1015495, 1249840, 1624792, 1911520, 2030990, 2499680, 3249584, 3823040, 4061980, 4999360, 6499168, 8123960, 12998336, 16247920, 32495840, 64991680]

約数ペア:

[(1, 64991680), (2, 32495840), (4, 16247920), (5, 12998336), (8, 8123960), (10, 6499168), (13, 4999360), (16, 4061980), (17, 3823040), (20, 3249584), (26, 2499680), (32, 2030990), (34, 1911520), (40, 1624792), (52, 1249840), (64, 1015495), (65, 999872), (68, 955760), (80, 812396), (85, 764608), (104, 624920), (130, 499936), (136, 477880), (160, 406198), (170, 382304), (208, 312460), (221, 294080), (260, 249968), (272, 238940), (320, 203099), (340, 191152), (416, 156230), (442, 147040), (520, 124984), (544, 119470), (680, 95576), (832, 78115), (884, 73520), (919, 70720), (1040, 62492), (1088, 59735), (1105, 58816), (1360, 47788), (1768, 36760), (1838, 35360), (2080, 31246), (2210, 29408), (2720, 23894), (3536, 18380), (3676, 17680), (4160, 15623), (4420, 14704), (4595, 14144), (5440, 11947), (7072, 9190), (7352, 8840)]