27939920

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4919}}^1$

素因数の和:5003

約数の個数: 40

約数和(自身を含む): 65888640

約数和(自身を除く): 37948720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 4919, 5680, 9838, 19676, 24595, 39352, 49190, 78704, 98380, 196760, 349249, 393520, 698498, 1396996, 1746245, 2793992, 3492490, 5587984, 6984980, 13969960, 27939920]

約数ペア:

[(1, 27939920), (2, 13969960), (4, 6984980), (5, 5587984), (8, 3492490), (10, 2793992), (16, 1746245), (20, 1396996), (40, 698498), (71, 393520), (80, 349249), (142, 196760), (284, 98380), (355, 78704), (568, 49190), (710, 39352), (1136, 24595), (1420, 19676), (2840, 9838), (4919, 5680)]