829965320

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1\times {\mathrm{821}}^1$

素因数の和:1158

約数の個数: 64

約数和(自身を含む): 1893888000

約数和(自身を除く): 1063922680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 199, 254, 398, 508, 635, 796, 821, 995, 1016, 1270, 1592, 1642, 1990, 2540, 3284, 3980, 4105, 5080, 6568, 7960, 8210, 16420, 25273, 32840, 50546, 101092, 104267, 126365, 163379, 202184, 208534, 252730, 326758, 417068, 505460, 521335, 653516, 816895, 834136, 1010920, 1042670, 1307032, 1633790, 2085340, 3267580, 4170680, 6535160, 20749133, 41498266, 82996532, 103745665, 165993064, 207491330, 414982660, 829965320]

約数ペア:

[(1, 829965320), (2, 414982660), (4, 207491330), (5, 165993064), (8, 103745665), (10, 82996532), (20, 41498266), (40, 20749133), (127, 6535160), (199, 4170680), (254, 3267580), (398, 2085340), (508, 1633790), (635, 1307032), (796, 1042670), (821, 1010920), (995, 834136), (1016, 816895), (1270, 653516), (1592, 521335), (1642, 505460), (1990, 417068), (2540, 326758), (3284, 252730), (3980, 208534), (4105, 202184), (5080, 163379), (6568, 126365), (7960, 104267), (8210, 101092), (16420, 50546), (25273, 32840)]