2131567180

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{331}}^1\times {\mathrm{2161}}^1$

素因数の和:2650

約数の個数: 48

約数和(自身を含む): 4522039200

約数和(自身を除く): 2390472020

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 331, 596, 662, 745, 1324, 1490, 1655, 2161, 2980, 3310, 4322, 6620, 8644, 10805, 21610, 43220, 49319, 98638, 197276, 246595, 321989, 493190, 643978, 715291, 986380, 1287956, 1430582, 1609945, 2861164, 3219890, 3576455, 6439780, 7152910, 14305820, 106578359, 213156718, 426313436, 532891795, 1065783590, 2131567180]

約数ペア:

[(1, 2131567180), (2, 1065783590), (4, 532891795), (5, 426313436), (10, 213156718), (20, 106578359), (149, 14305820), (298, 7152910), (331, 6439780), (596, 3576455), (662, 3219890), (745, 2861164), (1324, 1609945), (1490, 1430582), (1655, 1287956), (2161, 986380), (2980, 715291), (3310, 643978), (4322, 493190), (6620, 321989), (8644, 246595), (10805, 197276), (21610, 98638), (43220, 49319)]