13267960

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{811}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 29962800

約数和(自身を除く): 16694840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 811, 818, 1622, 1636, 2045, 3244, 3272, 4055, 4090, 6488, 8110, 8180, 16220, 16360, 32440, 331699, 663398, 1326796, 1658495, 2653592, 3316990, 6633980, 13267960]

約数ペア:

[(1, 13267960), (2, 6633980), (4, 3316990), (5, 2653592), (8, 1658495), (10, 1326796), (20, 663398), (40, 331699), (409, 32440), (811, 16360), (818, 16220), (1622, 8180), (1636, 8110), (2045, 6488), (3244, 4090), (3272, 4055)]