25082320

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1997}}^1$

素因数の和:2167

約数の個数: 40

約数和(自身を含む): 58717224

約数和(自身を除く): 33634904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 1997, 2512, 3140, 3994, 6280, 7988, 9985, 12560, 15976, 19970, 31952, 39940, 79880, 159760, 313529, 627058, 1254116, 1567645, 2508232, 3135290, 5016464, 6270580, 12541160, 25082320]

約数ペア:

[(1, 25082320), (2, 12541160), (4, 6270580), (5, 5016464), (8, 3135290), (10, 2508232), (16, 1567645), (20, 1254116), (40, 627058), (80, 313529), (157, 159760), (314, 79880), (628, 39940), (785, 31952), (1256, 19970), (1570, 15976), (1997, 12560), (2512, 9985), (3140, 7988), (3994, 6280)]