280423280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{184489}}^1$

素因数の和:184521

約数の個数: 40

約数和(自身を含む): 686302800

約数和(自身を除く): 405879520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 184489, 368978, 737956, 922445, 1475912, 1844890, 2951824, 3505291, 3689780, 7010582, 7379560, 14021164, 14759120, 17526455, 28042328, 35052910, 56084656, 70105820, 140211640, 280423280]

約数ペア:

[(1, 280423280), (2, 140211640), (4, 70105820), (5, 56084656), (8, 35052910), (10, 28042328), (16, 17526455), (19, 14759120), (20, 14021164), (38, 7379560), (40, 7010582), (76, 3689780), (80, 3505291), (95, 2951824), (152, 1844890), (190, 1475912), (304, 922445), (380, 737956), (760, 368978), (1520, 184489)]