891066320

素因数分解:

$2^4\times 5^1\times {\mathrm{557}}^1\times {\mathrm{19997}}^1$

素因数の和:20567

約数の個数: 40

約数和(自身を含む): 2075552424

約数和(自身を除く): 1184486104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 557, 1114, 2228, 2785, 4456, 5570, 8912, 11140, 19997, 22280, 39994, 44560, 79988, 99985, 159976, 199970, 319952, 399940, 799880, 1599760, 11138329, 22276658, 44553316, 55691645, 89106632, 111383290, 178213264, 222766580, 445533160, 891066320]

約数ペア:

[(1, 891066320), (2, 445533160), (4, 222766580), (5, 178213264), (8, 111383290), (10, 89106632), (16, 55691645), (20, 44553316), (40, 22276658), (80, 11138329), (557, 1599760), (1114, 799880), (2228, 399940), (2785, 319952), (4456, 199970), (5570, 159976), (8912, 99985), (11140, 79988), (19997, 44560), (22280, 39994)]