212216080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{85571}}^1$

素因数の和:85615

約数の個数: 40

約数和(自身を含む): 509324544

約数和(自身を除く): 297108464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 85571, 171142, 342284, 427855, 684568, 855710, 1369136, 1711420, 2652701, 3422840, 5305402, 6845680, 10610804, 13263505, 21221608, 26527010, 42443216, 53054020, 106108040, 212216080]

約数ペア:

[(1, 212216080), (2, 106108040), (4, 53054020), (5, 42443216), (8, 26527010), (10, 21221608), (16, 13263505), (20, 10610804), (31, 6845680), (40, 5305402), (62, 3422840), (80, 2652701), (124, 1711420), (155, 1369136), (248, 855710), (310, 684568), (496, 427855), (620, 342284), (1240, 171142), (2480, 85571)]