29627960

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1811}}^1$

素因数の和:2231

約数の個数: 32

約数和(自身を含む): 66862800

約数和(自身を除く): 37234840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 1811, 2045, 3272, 3622, 4090, 7244, 8180, 9055, 14488, 16360, 18110, 36220, 72440, 740699, 1481398, 2962796, 3703495, 5925592, 7406990, 14813980, 29627960]

約数ペア:

[(1, 29627960), (2, 14813980), (4, 7406990), (5, 5925592), (8, 3703495), (10, 2962796), (20, 1481398), (40, 740699), (409, 72440), (818, 36220), (1636, 18110), (1811, 16360), (2045, 14488), (3272, 9055), (3622, 8180), (4090, 7244)]