19919770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2287}}^1$

素因数の和:2374

約数の個数: 32

約数和(自身を含む): 39207168

約数和(自身を除く): 19287398

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 2287, 4355, 4574, 8710, 11435, 22870, 29731, 59462, 148655, 153229, 297310, 306458, 766145, 1532290, 1991977, 3983954, 9959885, 19919770]

約数ペア:

[(1, 19919770), (2, 9959885), (5, 3983954), (10, 1991977), (13, 1532290), (26, 766145), (65, 306458), (67, 297310), (130, 153229), (134, 148655), (335, 59462), (670, 29731), (871, 22870), (1742, 11435), (2287, 8710), (4355, 4574)]