15920720

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1567}}^1$

素因数の和:1707

約数の個数: 40

約数和(自身を含む): 37330944

約数和(自身を除く): 21410224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 1567, 2032, 2540, 3134, 5080, 6268, 7835, 10160, 12536, 15670, 25072, 31340, 62680, 125360, 199009, 398018, 796036, 995045, 1592072, 1990090, 3184144, 3980180, 7960360, 15920720]

約数ペア:

[(1, 15920720), (2, 7960360), (4, 3980180), (5, 3184144), (8, 1990090), (10, 1592072), (16, 995045), (20, 796036), (40, 398018), (80, 199009), (127, 125360), (254, 62680), (508, 31340), (635, 25072), (1016, 15670), (1270, 12536), (1567, 10160), (2032, 7835), (2540, 6268), (3134, 5080)]