15941980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{11897}}^1$

素因数の和:11973

約数の個数: 24

約数和(自身を含む): 33980688

約数和(自身を除く): 18038708

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 11897, 23794, 47588, 59485, 118970, 237940, 797099, 1594198, 3188396, 3985495, 7970990, 15941980]

約数ペア:

[(1, 15941980), (2, 7970990), (4, 3985495), (5, 3188396), (10, 1594198), (20, 797099), (67, 237940), (134, 118970), (268, 59485), (335, 47588), (670, 23794), (1340, 11897)]