8671940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 19160064

約数和(自身を除く): 10488124

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 197, 284, 310, 355, 394, 620, 710, 788, 985, 1420, 1970, 2201, 3940, 4402, 6107, 8804, 11005, 12214, 13987, 22010, 24428, 27974, 30535, 44020, 55948, 61070, 69935, 122140, 139870, 279740, 433597, 867194, 1734388, 2167985, 4335970, 8671940]

約数ペア:

[(1, 8671940), (2, 4335970), (4, 2167985), (5, 1734388), (10, 867194), (20, 433597), (31, 279740), (62, 139870), (71, 122140), (124, 69935), (142, 61070), (155, 55948), (197, 44020), (284, 30535), (310, 27974), (355, 24428), (394, 22010), (620, 13987), (710, 12214), (788, 11005), (985, 8804), (1420, 6107), (1970, 4402), (2201, 3940)]