858595820

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1\times {\mathrm{953}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 1826139168

約数和(自身を除く): 967543348

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 421, 428, 535, 842, 953, 1070, 1684, 1906, 2105, 2140, 3812, 4210, 4765, 8420, 9530, 19060, 45047, 90094, 101971, 180188, 203942, 225235, 401213, 407884, 450470, 509855, 802426, 900940, 1019710, 1604852, 2006065, 2039420, 4012130, 8024260, 42929791, 85859582, 171719164, 214648955, 429297910, 858595820]

約数ペア:

[(1, 858595820), (2, 429297910), (4, 214648955), (5, 171719164), (10, 85859582), (20, 42929791), (107, 8024260), (214, 4012130), (421, 2039420), (428, 2006065), (535, 1604852), (842, 1019710), (953, 900940), (1070, 802426), (1684, 509855), (1906, 450470), (2105, 407884), (2140, 401213), (3812, 225235), (4210, 203942), (4765, 180188), (8420, 101971), (9530, 90094), (19060, 45047)]