40102220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{911}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 88252416

約数和(自身を除く): 48150196

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 911, 1420, 1822, 2201, 3644, 4402, 4555, 8804, 9110, 11005, 18220, 22010, 28241, 44020, 56482, 64681, 112964, 129362, 141205, 258724, 282410, 323405, 564820, 646810, 1293620, 2005111, 4010222, 8020444, 10025555, 20051110, 40102220]

約数ペア:

[(1, 40102220), (2, 20051110), (4, 10025555), (5, 8020444), (10, 4010222), (20, 2005111), (31, 1293620), (62, 646810), (71, 564820), (124, 323405), (142, 282410), (155, 258724), (284, 141205), (310, 129362), (355, 112964), (620, 64681), (710, 56482), (911, 44020), (1420, 28241), (1822, 22010), (2201, 18220), (3644, 11005), (4402, 9110), (4555, 8804)]