78649340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51071}}^1$

素因数の和:51098

約数の個数: 48

約数和(自身を含む): 205922304

約数和(自身を除く): 127272964

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 51071, 102142, 204284, 255355, 357497, 510710, 561781, 714994, 1021420, 1123562, 1429988, 1787485, 2247124, 2808905, 3574970, 3932467, 5617810, 7149940, 7864934, 11235620, 15729868, 19662335, 39324670, 78649340]

約数ペア:

[(1, 78649340), (2, 39324670), (4, 19662335), (5, 15729868), (7, 11235620), (10, 7864934), (11, 7149940), (14, 5617810), (20, 3932467), (22, 3574970), (28, 2808905), (35, 2247124), (44, 1787485), (55, 1429988), (70, 1123562), (77, 1021420), (110, 714994), (140, 561781), (154, 510710), (220, 357497), (308, 255355), (385, 204284), (770, 102142), (1540, 51071)]