12639320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10193}}^1$

素因数の和:10235

約数の個数: 32

約数和(自身を含む): 29358720

約数和(自身を除く): 16719400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 10193, 20386, 40772, 50965, 81544, 101930, 203860, 315983, 407720, 631966, 1263932, 1579915, 2527864, 3159830, 6319660, 12639320]

約数ペア:

[(1, 12639320), (2, 6319660), (4, 3159830), (5, 2527864), (8, 1579915), (10, 1263932), (20, 631966), (31, 407720), (40, 315983), (62, 203860), (124, 101930), (155, 81544), (248, 50965), (310, 40772), (620, 20386), (1240, 10193)]