65623780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{419}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 142248960

約数和(自身を除く): 76625180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 191, 205, 382, 410, 419, 764, 820, 838, 955, 1676, 1910, 2095, 3820, 4190, 7831, 8380, 15662, 17179, 31324, 34358, 39155, 68716, 78310, 80029, 85895, 156620, 160058, 171790, 320116, 343580, 400145, 800290, 1600580, 3281189, 6562378, 13124756, 16405945, 32811890, 65623780]

約数ペア:

[(1, 65623780), (2, 32811890), (4, 16405945), (5, 13124756), (10, 6562378), (20, 3281189), (41, 1600580), (82, 800290), (164, 400145), (191, 343580), (205, 320116), (382, 171790), (410, 160058), (419, 156620), (764, 85895), (820, 80029), (838, 78310), (955, 68716), (1676, 39155), (1910, 34358), (2095, 31324), (3820, 17179), (4190, 15662), (7831, 8380)]