8251700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 19477920

約数和(自身を除く): 11226220

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 101, 172, 190, 202, 215, 380, 404, 430, 475, 505, 817, 860, 950, 1010, 1075, 1634, 1900, 1919, 2020, 2150, 2525, 3268, 3838, 4085, 4300, 4343, 5050, 7676, 8170, 8686, 9595, 10100, 16340, 17372, 19190, 20425, 21715, 38380, 40850, 43430, 47975, 81700, 82517, 86860, 95950, 108575, 165034, 191900, 217150, 330068, 412585, 434300, 825170, 1650340, 2062925, 4125850, 8251700]

約数ペア:

[(1, 8251700), (2, 4125850), (4, 2062925), (5, 1650340), (10, 825170), (19, 434300), (20, 412585), (25, 330068), (38, 217150), (43, 191900), (50, 165034), (76, 108575), (86, 95950), (95, 86860), (100, 82517), (101, 81700), (172, 47975), (190, 43430), (202, 40850), (215, 38380), (380, 21715), (404, 20425), (430, 19190), (475, 17372), (505, 16340), (817, 10100), (860, 9595), (950, 8686), (1010, 8170), (1075, 7676), (1634, 5050), (1900, 4343), (1919, 4300), (2020, 4085), (2150, 3838), (2525, 3268)]