12922420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{383}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 31223808

約数和(自身を除く): 18301388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 241, 383, 482, 766, 964, 1205, 1532, 1687, 1915, 2410, 2681, 3374, 3830, 4820, 5362, 6748, 7660, 8435, 10724, 13405, 16870, 26810, 33740, 53620, 92303, 184606, 369212, 461515, 646121, 923030, 1292242, 1846060, 2584484, 3230605, 6461210, 12922420]

約数ペア:

[(1, 12922420), (2, 6461210), (4, 3230605), (5, 2584484), (7, 1846060), (10, 1292242), (14, 923030), (20, 646121), (28, 461515), (35, 369212), (70, 184606), (140, 92303), (241, 53620), (383, 33740), (482, 26810), (766, 16870), (964, 13405), (1205, 10724), (1532, 8435), (1687, 7660), (1915, 6748), (2410, 5362), (2681, 4820), (3374, 3830)]