145331320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1$

素因数の和:856

約数の個数: 64

約数和(自身を含む): 336623040

約数和(自身を除く): 191291720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 284, 292, 355, 365, 568, 584, 701, 710, 730, 1402, 1420, 1460, 2804, 2840, 2920, 3505, 5183, 5608, 7010, 10366, 14020, 20732, 25915, 28040, 41464, 49771, 51173, 51830, 99542, 102346, 103660, 199084, 204692, 207320, 248855, 255865, 398168, 409384, 497710, 511730, 995420, 1023460, 1990840, 2046920, 3633283, 7266566, 14533132, 18166415, 29066264, 36332830, 72665660, 145331320]

約数ペア:

[(1, 145331320), (2, 72665660), (4, 36332830), (5, 29066264), (8, 18166415), (10, 14533132), (20, 7266566), (40, 3633283), (71, 2046920), (73, 1990840), (142, 1023460), (146, 995420), (284, 511730), (292, 497710), (355, 409384), (365, 398168), (568, 255865), (584, 248855), (701, 207320), (710, 204692), (730, 199084), (1402, 103660), (1420, 102346), (1460, 99542), (2804, 51830), (2840, 51173), (2920, 49771), (3505, 41464), (5183, 28040), (5608, 25915), (7010, 20732), (10366, 14020)]