20108227376

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40540781}}^1$

素因数の和:40540820

約数の個数: 20

約数和(自身を含む): 40216455744

約数和(自身を除く): 20108228368

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40540781, 81081562, 162163124, 324326248, 648652496, 1256764211, 2513528422, 5027056844, 10054113688, 20108227376]

約数ペア:

[(1, 20108227376), (2, 10054113688), (4, 5027056844), (8, 2513528422), (16, 1256764211), (31, 648652496), (62, 324326248), (124, 162163124), (248, 81081562), (496, 40540781)]