21525160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17359}}^1$

素因数の和:17401

約数の個数: 32

約数和(自身を含む): 49996800

約数和(自身を除く): 28471640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 17359, 34718, 69436, 86795, 138872, 173590, 347180, 538129, 694360, 1076258, 2152516, 2690645, 4305032, 5381290, 10762580, 21525160]

約数ペア:

[(1, 21525160), (2, 10762580), (4, 5381290), (5, 4305032), (8, 2690645), (10, 2152516), (20, 1076258), (31, 694360), (40, 538129), (62, 347180), (124, 173590), (155, 138872), (248, 86795), (310, 69436), (620, 34718), (1240, 17359)]