261862860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{89069}}^1$

素因数の和:89095

約数の個数: 72

約数和(自身を含む): 852934320

約数和(自身を除く): 591071460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 89069, 178138, 267207, 356276, 445345, 534414, 623483, 890690, 1068828, 1246966, 1336035, 1781380, 1870449, 2493932, 2672070, 3117415, 3740898, 4364381, 5344140, 6234830, 7481796, 8728762, 9352245, 12469660, 13093143, 17457524, 18704490, 21821905, 26186286, 37408980, 43643810, 52372572, 65465715, 87287620, 130931430, 261862860]

約数ペア:

[(1, 261862860), (2, 130931430), (3, 87287620), (4, 65465715), (5, 52372572), (6, 43643810), (7, 37408980), (10, 26186286), (12, 21821905), (14, 18704490), (15, 17457524), (20, 13093143), (21, 12469660), (28, 9352245), (30, 8728762), (35, 7481796), (42, 6234830), (49, 5344140), (60, 4364381), (70, 3740898), (84, 3117415), (98, 2672070), (105, 2493932), (140, 1870449), (147, 1781380), (196, 1336035), (210, 1246966), (245, 1068828), (294, 890690), (420, 623483), (490, 534414), (588, 445345), (735, 356276), (980, 267207), (1470, 178138), (2940, 89069)]