201280120

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{44531}}^1$

素因数の和:44655

約数の個数: 32

約数和(自身を含む): 456898320

約数和(自身を除く): 255618200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 44531, 89062, 178124, 222655, 356248, 445310, 890620, 1781240, 5032003, 10064006, 20128012, 25160015, 40256024, 50320030, 100640060, 201280120]

約数ペア:

[(1, 201280120), (2, 100640060), (4, 50320030), (5, 40256024), (8, 25160015), (10, 20128012), (20, 10064006), (40, 5032003), (113, 1781240), (226, 890620), (452, 445310), (565, 356248), (904, 222655), (1130, 178124), (2260, 89062), (4520, 44531)]