64455280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 157427424

約数和(自身を除く): 92972144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 457, 656, 688, 820, 860, 914, 1640, 1720, 1763, 1828, 2285, 3280, 3440, 3526, 3656, 4570, 7052, 7312, 8815, 9140, 14104, 17630, 18280, 18737, 19651, 28208, 35260, 36560, 37474, 39302, 70520, 74948, 78604, 93685, 98255, 141040, 149896, 157208, 187370, 196510, 299792, 314416, 374740, 393020, 749480, 786040, 805691, 1498960, 1572080, 1611382, 3222764, 4028455, 6445528, 8056910, 12891056, 16113820, 32227640, 64455280]

約数ペア:

[(1, 64455280), (2, 32227640), (4, 16113820), (5, 12891056), (8, 8056910), (10, 6445528), (16, 4028455), (20, 3222764), (40, 1611382), (41, 1572080), (43, 1498960), (80, 805691), (82, 786040), (86, 749480), (164, 393020), (172, 374740), (205, 314416), (215, 299792), (328, 196510), (344, 187370), (410, 157208), (430, 149896), (457, 141040), (656, 98255), (688, 93685), (820, 78604), (860, 74948), (914, 70520), (1640, 39302), (1720, 37474), (1763, 36560), (1828, 35260), (2285, 28208), (3280, 19651), (3440, 18737), (3526, 18280), (3656, 17630), (4570, 14104), (7052, 9140), (7312, 8815)]