13240540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 29028384

約数和(自身を除く): 15787844

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 241, 268, 335, 410, 482, 670, 820, 964, 1205, 1340, 2410, 2747, 4820, 5494, 9881, 10988, 13735, 16147, 19762, 27470, 32294, 39524, 49405, 54940, 64588, 80735, 98810, 161470, 197620, 322940, 662027, 1324054, 2648108, 3310135, 6620270, 13240540]

約数ペア:

[(1, 13240540), (2, 6620270), (4, 3310135), (5, 2648108), (10, 1324054), (20, 662027), (41, 322940), (67, 197620), (82, 161470), (134, 98810), (164, 80735), (205, 64588), (241, 54940), (268, 49405), (335, 39524), (410, 32294), (482, 27470), (670, 19762), (820, 16147), (964, 13735), (1205, 10988), (1340, 9881), (2410, 5494), (2747, 4820)]