138397880

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{457}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 319537440

約数和(自身を除く): 181139560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 113, 134, 226, 268, 335, 452, 457, 536, 565, 670, 904, 914, 1130, 1340, 1828, 2260, 2285, 2680, 3656, 4520, 4570, 7571, 9140, 15142, 18280, 30284, 30619, 37855, 51641, 60568, 61238, 75710, 103282, 122476, 151420, 153095, 206564, 244952, 258205, 302840, 306190, 413128, 516410, 612380, 1032820, 1224760, 2065640, 3459947, 6919894, 13839788, 17299735, 27679576, 34599470, 69198940, 138397880]

約数ペア:

[(1, 138397880), (2, 69198940), (4, 34599470), (5, 27679576), (8, 17299735), (10, 13839788), (20, 6919894), (40, 3459947), (67, 2065640), (113, 1224760), (134, 1032820), (226, 612380), (268, 516410), (335, 413128), (452, 306190), (457, 302840), (536, 258205), (565, 244952), (670, 206564), (904, 153095), (914, 151420), (1130, 122476), (1340, 103282), (1828, 75710), (2260, 61238), (2285, 60568), (2680, 51641), (3656, 37855), (4520, 30619), (4570, 30284), (7571, 18280), (9140, 15142)]