129557990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{2309}}^1$

素因数の和:2528

約数の個数: 32

約数和(自身を含む): 242161920

約数和(自身を除く): 112603930

約数列:

[1, 2, 5, 10, 31, 62, 155, 181, 310, 362, 905, 1810, 2309, 4618, 5611, 11222, 11545, 23090, 28055, 56110, 71579, 143158, 357895, 417929, 715790, 835858, 2089645, 4179290, 12955799, 25911598, 64778995, 129557990]

約数ペア:

[(1, 129557990), (2, 64778995), (5, 25911598), (10, 12955799), (31, 4179290), (62, 2089645), (155, 835858), (181, 715790), (310, 417929), (362, 357895), (905, 143158), (1810, 71579), (2309, 56110), (4618, 28055), (5611, 23090), (11222, 11545)]