256230870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{1220147}}^1$

素因数の和:1220164

約数の個数: 32

約数和(自身を含む): 702805248

約数和(自身を除く): 446574378

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 1220147, 2440294, 3660441, 6100735, 7320882, 8541029, 12201470, 17082058, 18302205, 25623087, 36604410, 42705145, 51246174, 85410290, 128115435, 256230870]

約数ペア:

[(1, 256230870), (2, 128115435), (3, 85410290), (5, 51246174), (6, 42705145), (7, 36604410), (10, 25623087), (14, 18302205), (15, 17082058), (21, 12201470), (30, 8541029), (35, 7320882), (42, 6100735), (70, 3660441), (105, 2440294), (210, 1220147)]