65857960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{33601}}^1$

素因数の和:33626

約数の個数: 48

約数和(自身を含む): 172378260

約数和(自身を除く): 106520300

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 33601, 67202, 134404, 168005, 235207, 268808, 336010, 470414, 672020, 940828, 1176035, 1344040, 1646449, 1881656, 2352070, 3292898, 4704140, 6585796, 8232245, 9408280, 13171592, 16464490, 32928980, 65857960]

約数ペア:

[(1, 65857960), (2, 32928980), (4, 16464490), (5, 13171592), (7, 9408280), (8, 8232245), (10, 6585796), (14, 4704140), (20, 3292898), (28, 2352070), (35, 1881656), (40, 1646449), (49, 1344040), (56, 1176035), (70, 940828), (98, 672020), (140, 470414), (196, 336010), (245, 268808), (280, 235207), (392, 168005), (490, 134404), (980, 67202), (1960, 33601)]