61786780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1723}}^1$

素因数の和:1906

約数の個数: 48

約数和(自身を含む): 142498944

約数和(自身を除く): 80712164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 163, 220, 326, 652, 815, 1630, 1723, 1793, 3260, 3446, 3586, 6892, 7172, 8615, 8965, 17230, 17930, 18953, 34460, 35860, 37906, 75812, 94765, 189530, 280849, 379060, 561698, 1123396, 1404245, 2808490, 3089339, 5616980, 6178678, 12357356, 15446695, 30893390, 61786780]

約数ペア:

[(1, 61786780), (2, 30893390), (4, 15446695), (5, 12357356), (10, 6178678), (11, 5616980), (20, 3089339), (22, 2808490), (44, 1404245), (55, 1123396), (110, 561698), (163, 379060), (220, 280849), (326, 189530), (652, 94765), (815, 75812), (1630, 37906), (1723, 35860), (1793, 34460), (3260, 18953), (3446, 17930), (3586, 17230), (6892, 8965), (7172, 8615)]