20708040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10151}}^1$

素因数の和:10182

約数の個数: 64

約数和(自身を含む): 65784960

約数和(自身を除く): 45076920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10151, 20302, 30453, 40604, 50755, 60906, 81208, 101510, 121812, 152265, 172567, 203020, 243624, 304530, 345134, 406040, 517701, 609060, 690268, 862835, 1035402, 1218120, 1380536, 1725670, 2070804, 2588505, 3451340, 4141608, 5177010, 6902680, 10354020, 20708040]

約数ペア:

[(1, 20708040), (2, 10354020), (3, 6902680), (4, 5177010), (5, 4141608), (6, 3451340), (8, 2588505), (10, 2070804), (12, 1725670), (15, 1380536), (17, 1218120), (20, 1035402), (24, 862835), (30, 690268), (34, 609060), (40, 517701), (51, 406040), (60, 345134), (68, 304530), (85, 243624), (102, 203020), (120, 172567), (136, 152265), (170, 121812), (204, 101510), (255, 81208), (340, 60906), (408, 50755), (510, 40604), (680, 30453), (1020, 20302), (2040, 10151)]