61523380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{239}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 132491520

約数和(自身を除く): 70968140

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 211, 239, 244, 305, 422, 478, 610, 844, 956, 1055, 1195, 1220, 2110, 2390, 4220, 4780, 12871, 14579, 25742, 29158, 50429, 51484, 58316, 64355, 72895, 100858, 128710, 145790, 201716, 252145, 257420, 291580, 504290, 1008580, 3076169, 6152338, 12304676, 15380845, 30761690, 61523380]

約数ペア:

[(1, 61523380), (2, 30761690), (4, 15380845), (5, 12304676), (10, 6152338), (20, 3076169), (61, 1008580), (122, 504290), (211, 291580), (239, 257420), (244, 252145), (305, 201716), (422, 145790), (478, 128710), (610, 100858), (844, 72895), (956, 64355), (1055, 58316), (1195, 51484), (1220, 50429), (2110, 29158), (2390, 25742), (4220, 14579), (4780, 12871)]