171779320

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{20353}}^1$

素因数の和:20575

約数の個数: 32

約数和(自身を含む): 388354320

約数和(自身を除く): 216575000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 20353, 40706, 81412, 101765, 162824, 203530, 407060, 814120, 4294483, 8588966, 17177932, 21472415, 34355864, 42944830, 85889660, 171779320]

約数ペア:

[(1, 171779320), (2, 85889660), (4, 42944830), (5, 34355864), (8, 21472415), (10, 17177932), (20, 8588966), (40, 4294483), (211, 814120), (422, 407060), (844, 203530), (1055, 162824), (1688, 101765), (2110, 81412), (4220, 40706), (8440, 20353)]