15702620

素因数分解:

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

素因数の和:342

約数の個数: 36

約数和(自身を含む): 33683832

約数和(自身を除く): 17981212

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 211, 244, 305, 422, 610, 844, 1055, 1220, 2110, 3721, 4220, 7442, 12871, 14884, 18605, 25742, 37210, 51484, 64355, 74420, 128710, 257420, 785131, 1570262, 3140524, 3925655, 7851310, 15702620]

約数ペア:

[(1, 15702620), (2, 7851310), (4, 3925655), (5, 3140524), (10, 1570262), (20, 785131), (61, 257420), (122, 128710), (211, 74420), (244, 64355), (305, 51484), (422, 37210), (610, 25742), (844, 18605), (1055, 14884), (1220, 12871), (2110, 7442), (3721, 4220)]