28254680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1188

約数の個数: 64

約数和(自身を含む): 69193440

約数和(自身を除く): 40938760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 85, 136, 148, 170, 185, 296, 340, 370, 629, 680, 740, 1123, 1258, 1480, 2246, 2516, 3145, 4492, 5032, 5615, 6290, 8984, 11230, 12580, 19091, 22460, 25160, 38182, 41551, 44920, 76364, 83102, 95455, 152728, 166204, 190910, 207755, 332408, 381820, 415510, 706367, 763640, 831020, 1412734, 1662040, 2825468, 3531835, 5650936, 7063670, 14127340, 28254680]

約数ペア:

[(1, 28254680), (2, 14127340), (4, 7063670), (5, 5650936), (8, 3531835), (10, 2825468), (17, 1662040), (20, 1412734), (34, 831020), (37, 763640), (40, 706367), (68, 415510), (74, 381820), (85, 332408), (136, 207755), (148, 190910), (170, 166204), (185, 152728), (296, 95455), (340, 83102), (370, 76364), (629, 44920), (680, 41551), (740, 38182), (1123, 25160), (1258, 22460), (1480, 19091), (2246, 12580), (2516, 11230), (3145, 8984), (4492, 6290), (5032, 5615)]