2779071760

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{213119}}^1$

素因数の和:213295

約数の個数: 40

約数和(自身を含む): 6501012480

約数和(自身を除く): 3721940720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 213119, 426238, 852476, 1065595, 1704952, 2131190, 3409904, 4262380, 8524760, 17049520, 34738397, 69476794, 138953588, 173691985, 277907176, 347383970, 555814352, 694767940, 1389535880, 2779071760]

約数ペア:

[(1, 2779071760), (2, 1389535880), (4, 694767940), (5, 555814352), (8, 347383970), (10, 277907176), (16, 173691985), (20, 138953588), (40, 69476794), (80, 34738397), (163, 17049520), (326, 8524760), (652, 4262380), (815, 3409904), (1304, 2131190), (1630, 1704952), (2608, 1065595), (3260, 852476), (6520, 426238), (13040, 213119)]