20735290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{563}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 38983680

約数和(自身を除く): 18248390

約数列:

[1, 2, 5, 10, 29, 58, 127, 145, 254, 290, 563, 635, 1126, 1270, 2815, 3683, 5630, 7366, 16327, 18415, 32654, 36830, 71501, 81635, 143002, 163270, 357505, 715010, 2073529, 4147058, 10367645, 20735290]

約数ペア:

[(1, 20735290), (2, 10367645), (5, 4147058), (10, 2073529), (29, 715010), (58, 357505), (127, 163270), (145, 143002), (254, 81635), (290, 71501), (563, 36830), (635, 32654), (1126, 18415), (1270, 16327), (2815, 7366), (3683, 5630)]