1982320

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:433

約数の個数: 40

約数和(自身を含む): 4687200

約数和(自身を除く): 2704880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 349, 355, 568, 698, 710, 1136, 1396, 1420, 1745, 2792, 2840, 3490, 5584, 5680, 6980, 13960, 24779, 27920, 49558, 99116, 123895, 198232, 247790, 396464, 495580, 991160, 1982320]

約数ペア:

[(1, 1982320), (2, 991160), (4, 495580), (5, 396464), (8, 247790), (10, 198232), (16, 123895), (20, 99116), (40, 49558), (71, 27920), (80, 24779), (142, 13960), (284, 6980), (349, 5680), (355, 5584), (568, 3490), (698, 2840), (710, 2792), (1136, 1745), (1396, 1420)]