25391320

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1583}}^1$

素因数の和:1995

約数の個数: 32

約数和(自身を含む): 57309120

約数和(自身を除く): 31917800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1583, 1604, 2005, 3166, 3208, 4010, 6332, 7915, 8020, 12664, 15830, 16040, 31660, 63320, 634783, 1269566, 2539132, 3173915, 5078264, 6347830, 12695660, 25391320]

約数ペア:

[(1, 25391320), (2, 12695660), (4, 6347830), (5, 5078264), (8, 3173915), (10, 2539132), (20, 1269566), (40, 634783), (401, 63320), (802, 31660), (1583, 16040), (1604, 15830), (2005, 12664), (3166, 8020), (3208, 7915), (4010, 6332)]