13886420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 30410688

約数和(自身を除く): 16524268

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 172, 215, 241, 268, 335, 430, 482, 670, 860, 964, 1205, 1340, 2410, 2881, 4820, 5762, 10363, 11524, 14405, 16147, 20726, 28810, 32294, 41452, 51815, 57620, 64588, 80735, 103630, 161470, 207260, 322940, 694321, 1388642, 2777284, 3471605, 6943210, 13886420]

約数ペア:

[(1, 13886420), (2, 6943210), (4, 3471605), (5, 2777284), (10, 1388642), (20, 694321), (43, 322940), (67, 207260), (86, 161470), (134, 103630), (172, 80735), (215, 64588), (241, 57620), (268, 51815), (335, 41452), (430, 32294), (482, 28810), (670, 20726), (860, 16147), (964, 14405), (1205, 11524), (1340, 10363), (2410, 5762), (2881, 4820)]