20098715

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 29976576

約数和(自身を除く): 9877861

約数列:

[1, 5, 7, 13, 35, 65, 91, 163, 271, 455, 815, 1141, 1355, 1897, 2119, 3523, 5705, 9485, 10595, 14833, 17615, 24661, 44173, 74165, 123305, 220865, 309211, 574249, 1546055, 2871245, 4019743, 20098715]

約数ペア:

[(1, 20098715), (5, 4019743), (7, 2871245), (13, 1546055), (35, 574249), (65, 309211), (91, 220865), (163, 123305), (271, 74165), (455, 44173), (815, 24661), (1141, 17615), (1355, 14833), (1897, 10595), (2119, 9485), (3523, 5705)]