63171980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{1879}}^1$

素因数の和:1970

約数の個数: 36

約数和(自身を含む): 136048080

約数和(自身を除く): 72876100

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1681, 1879, 3362, 3758, 6724, 7516, 8405, 9395, 16810, 18790, 33620, 37580, 77039, 154078, 308156, 385195, 770390, 1540780, 3158599, 6317198, 12634396, 15792995, 31585990, 63171980]

約数ペア:

[(1, 63171980), (2, 31585990), (4, 15792995), (5, 12634396), (10, 6317198), (20, 3158599), (41, 1540780), (82, 770390), (164, 385195), (205, 308156), (410, 154078), (820, 77039), (1681, 37580), (1879, 33620), (3362, 18790), (3758, 16810), (6724, 9395), (7516, 8405)]