31801920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:388

約数の個数: 112

約数和(自身を含む): 102095808

約数和(自身を除く): 70293888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 157, 160, 192, 211, 240, 314, 320, 422, 471, 480, 628, 633, 785, 844, 942, 960, 1055, 1256, 1266, 1570, 1688, 1884, 2110, 2355, 2512, 2532, 3140, 3165, 3376, 3768, 4220, 4710, 5024, 5064, 6280, 6330, 6752, 7536, 8440, 9420, 10048, 10128, 12560, 12660, 13504, 15072, 16880, 18840, 20256, 25120, 25320, 30144, 33127, 33760, 37680, 40512, 50240, 50640, 66254, 67520, 75360, 99381, 101280, 132508, 150720, 165635, 198762, 202560, 265016, 331270, 397524, 496905, 530032, 662540, 795048, 993810, 1060064, 1325080, 1590096, 1987620, 2120128, 2650160, 3180192, 3975240, 5300320, 6360384, 7950480, 10600640, 15900960, 31801920]

約数ペア:

[(1, 31801920), (2, 15900960), (3, 10600640), (4, 7950480), (5, 6360384), (6, 5300320), (8, 3975240), (10, 3180192), (12, 2650160), (15, 2120128), (16, 1987620), (20, 1590096), (24, 1325080), (30, 1060064), (32, 993810), (40, 795048), (48, 662540), (60, 530032), (64, 496905), (80, 397524), (96, 331270), (120, 265016), (157, 202560), (160, 198762), (192, 165635), (211, 150720), (240, 132508), (314, 101280), (320, 99381), (422, 75360), (471, 67520), (480, 66254), (628, 50640), (633, 50240), (785, 40512), (844, 37680), (942, 33760), (960, 33127), (1055, 30144), (1256, 25320), (1266, 25120), (1570, 20256), (1688, 18840), (1884, 16880), (2110, 15072), (2355, 13504), (2512, 12660), (2532, 12560), (3140, 10128), (3165, 10048), (3376, 9420), (3768, 8440), (4220, 7536), (4710, 6752), (5024, 6330), (5064, 6280)]