18515420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1093}}^1$

素因数の和:1131

約数の個数: 72

約数和(自身を含む): 48888672

約数和(自身を除く): 30373252

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1093, 1210, 1540, 1694, 2186, 2420, 3388, 4235, 4372, 5465, 7651, 8470, 10930, 12023, 15302, 16940, 21860, 24046, 30604, 38255, 48092, 60115, 76510, 84161, 120230, 132253, 153020, 168322, 240460, 264506, 336644, 420805, 529012, 661265, 841610, 925771, 1322530, 1683220, 1851542, 2645060, 3703084, 4628855, 9257710, 18515420]

約数ペア:

[(1, 18515420), (2, 9257710), (4, 4628855), (5, 3703084), (7, 2645060), (10, 1851542), (11, 1683220), (14, 1322530), (20, 925771), (22, 841610), (28, 661265), (35, 529012), (44, 420805), (55, 336644), (70, 264506), (77, 240460), (110, 168322), (121, 153020), (140, 132253), (154, 120230), (220, 84161), (242, 76510), (308, 60115), (385, 48092), (484, 38255), (605, 30604), (770, 24046), (847, 21860), (1093, 16940), (1210, 15302), (1540, 12023), (1694, 10930), (2186, 8470), (2420, 7651), (3388, 5465), (4235, 4372)]