61620380

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3109}}^1$

素因数の和:4109

約数の個数: 24

約数和(自身を含む): 129575040

約数和(自身を除く): 67954660

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3109, 3964, 4955, 6218, 9910, 12436, 15545, 19820, 31090, 62180, 3081019, 6162038, 12324076, 15405095, 30810190, 61620380]

約数ペア:

[(1, 61620380), (2, 30810190), (4, 15405095), (5, 12324076), (10, 6162038), (20, 3081019), (991, 62180), (1982, 31090), (3109, 19820), (3964, 15545), (4955, 12436), (6218, 9910)]