1408244720

素因数分解:

$2^4\times 5^1\times {\mathrm{839}}^1\times {\mathrm{20981}}^1$

素因数の和:21833

約数の個数: 40

約数和(自身を含む): 3278227680

約数和(自身を除く): 1869982960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 839, 1678, 3356, 4195, 6712, 8390, 13424, 16780, 20981, 33560, 41962, 67120, 83924, 104905, 167848, 209810, 335696, 419620, 839240, 1678480, 17603059, 35206118, 70412236, 88015295, 140824472, 176030590, 281648944, 352061180, 704122360, 1408244720]

約数ペア:

[(1, 1408244720), (2, 704122360), (4, 352061180), (5, 281648944), (8, 176030590), (10, 140824472), (16, 88015295), (20, 70412236), (40, 35206118), (80, 17603059), (839, 1678480), (1678, 839240), (3356, 419620), (4195, 335696), (6712, 209810), (8390, 167848), (13424, 104905), (16780, 83924), (20981, 67120), (33560, 41962)]