20095985

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1523}}^1$

素因数の和:1577

約数の個数: 32

約数和(自身を含む): 30723840

約数和(自身を除く): 10627855

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 1015, 1523, 1885, 2639, 7615, 10661, 13195, 19799, 44167, 53305, 98995, 138593, 220835, 309169, 574171, 692965, 1545845, 2870855, 4019197, 20095985]

約数ペア:

[(1, 20095985), (5, 4019197), (7, 2870855), (13, 1545845), (29, 692965), (35, 574171), (65, 309169), (91, 220835), (145, 138593), (203, 98995), (377, 53305), (455, 44167), (1015, 19799), (1523, 13195), (1885, 10661), (2639, 7615)]