143996920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{87803}}^1$

素因数の和:87855

約数の個数: 32

約数和(自身を含む): 331899120

約数和(自身を除く): 187902200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 87803, 175606, 351212, 439015, 702424, 878030, 1756060, 3512120, 3599923, 7199846, 14399692, 17999615, 28799384, 35999230, 71998460, 143996920]

約数ペア:

[(1, 143996920), (2, 71998460), (4, 35999230), (5, 28799384), (8, 17999615), (10, 14399692), (20, 7199846), (40, 3599923), (41, 3512120), (82, 1756060), (164, 878030), (205, 702424), (328, 439015), (410, 351212), (820, 175606), (1640, 87803)]