31639220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51031}}^1$

素因数の和:51071

約数の個数: 24

約数和(自身を含む): 68587008

約数和(自身を除く): 36947788

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 51031, 102062, 204124, 255155, 510310, 1020620, 1581961, 3163922, 6327844, 7909805, 15819610, 31639220]

約数ペア:

[(1, 31639220), (2, 15819610), (4, 7909805), (5, 6327844), (10, 3163922), (20, 1581961), (31, 1020620), (62, 510310), (124, 255155), (155, 204124), (310, 102062), (620, 51031)]