64385500

素因数分解:

$2^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{2111}}^1$

素因数の和:2191

約数の個数: 48

約数和(自身を含む): 142990848

約数和(自身を除く): 78605348

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 125, 244, 250, 305, 500, 610, 1220, 1525, 2111, 3050, 4222, 6100, 7625, 8444, 10555, 15250, 21110, 30500, 42220, 52775, 105550, 128771, 211100, 257542, 263875, 515084, 527750, 643855, 1055500, 1287710, 2575420, 3219275, 6438550, 12877100, 16096375, 32192750, 64385500]

約数ペア:

[(1, 64385500), (2, 32192750), (4, 16096375), (5, 12877100), (10, 6438550), (20, 3219275), (25, 2575420), (50, 1287710), (61, 1055500), (100, 643855), (122, 527750), (125, 515084), (244, 263875), (250, 257542), (305, 211100), (500, 128771), (610, 105550), (1220, 52775), (1525, 42220), (2111, 30500), (3050, 21110), (4222, 15250), (6100, 10555), (7625, 8444)]