39980320

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3163}}^1$

素因数の和:3257

約数の個数: 48

約数和(自身を含む): 95679360

約数和(自身を除く): 55699040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 2528, 3160, 3163, 6320, 6326, 12640, 12652, 15815, 25304, 31630, 50608, 63260, 101216, 126520, 249877, 253040, 499754, 506080, 999508, 1249385, 1999016, 2498770, 3998032, 4997540, 7996064, 9995080, 19990160, 39980320]

約数ペア:

[(1, 39980320), (2, 19990160), (4, 9995080), (5, 7996064), (8, 4997540), (10, 3998032), (16, 2498770), (20, 1999016), (32, 1249385), (40, 999508), (79, 506080), (80, 499754), (158, 253040), (160, 249877), (316, 126520), (395, 101216), (632, 63260), (790, 50608), (1264, 31630), (1580, 25304), (2528, 15815), (3160, 12652), (3163, 12640), (6320, 6326)]