64415280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1123}}^1$

素因数の和:1378

約数の個数: 80

約数和(自身を含む): 200701440

約数和(自身を除く): 136286160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 239, 240, 478, 717, 956, 1123, 1195, 1434, 1912, 2246, 2390, 2868, 3369, 3585, 3824, 4492, 4780, 5615, 5736, 6738, 7170, 8984, 9560, 11230, 11472, 13476, 14340, 16845, 17968, 19120, 22460, 26952, 28680, 33690, 44920, 53904, 57360, 67380, 89840, 134760, 268397, 269520, 536794, 805191, 1073588, 1341985, 1610382, 2147176, 2683970, 3220764, 4025955, 4294352, 5367940, 6441528, 8051910, 10735880, 12883056, 16103820, 21471760, 32207640, 64415280]

約数ペア:

[(1, 64415280), (2, 32207640), (3, 21471760), (4, 16103820), (5, 12883056), (6, 10735880), (8, 8051910), (10, 6441528), (12, 5367940), (15, 4294352), (16, 4025955), (20, 3220764), (24, 2683970), (30, 2147176), (40, 1610382), (48, 1341985), (60, 1073588), (80, 805191), (120, 536794), (239, 269520), (240, 268397), (478, 134760), (717, 89840), (956, 67380), (1123, 57360), (1195, 53904), (1434, 44920), (1912, 33690), (2246, 28680), (2390, 26952), (2868, 22460), (3369, 19120), (3585, 17968), (3824, 16845), (4492, 14340), (4780, 13476), (5615, 11472), (5736, 11230), (6738, 9560), (7170, 8984)]