64979240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{443}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 155044800

約数和(自身を除く): 90065560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 193, 380, 386, 443, 760, 772, 886, 965, 1544, 1772, 1930, 2215, 3544, 3667, 3860, 4430, 7334, 7720, 8417, 8860, 14668, 16834, 17720, 18335, 29336, 33668, 36670, 42085, 67336, 73340, 84170, 85499, 146680, 168340, 170998, 336680, 341996, 427495, 683992, 854990, 1624481, 1709980, 3248962, 3419960, 6497924, 8122405, 12995848, 16244810, 32489620, 64979240]

約数ペア:

[(1, 64979240), (2, 32489620), (4, 16244810), (5, 12995848), (8, 8122405), (10, 6497924), (19, 3419960), (20, 3248962), (38, 1709980), (40, 1624481), (76, 854990), (95, 683992), (152, 427495), (190, 341996), (193, 336680), (380, 170998), (386, 168340), (443, 146680), (760, 85499), (772, 84170), (886, 73340), (965, 67336), (1544, 42085), (1772, 36670), (1930, 33668), (2215, 29336), (3544, 18335), (3667, 17720), (3860, 16834), (4430, 14668), (7334, 8860), (7720, 8417)]