19910530

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{967}}^1$

素因数の和:1074

約数の個数: 32

約数和(自身を含む): 37635840

約数和(自身を除く): 17725310

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 290, 355, 710, 967, 1934, 2059, 4118, 4835, 9670, 10295, 20590, 28043, 56086, 68657, 137314, 140215, 280430, 343285, 686570, 1991053, 3982106, 9955265, 19910530]

約数ペア:

[(1, 19910530), (2, 9955265), (5, 3982106), (10, 1991053), (29, 686570), (58, 343285), (71, 280430), (142, 140215), (145, 137314), (290, 68657), (355, 56086), (710, 28043), (967, 20590), (1934, 10295), (2059, 9670), (4118, 4835)]