2905030520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{220747}}^1$

素因数の和:220812

約数の個数: 64

約数和(自身を含む): 7629050880

約数和(自身を除く): 4724020360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1645, 1880, 2632, 3290, 6580, 13160, 220747, 441494, 882988, 1103735, 1545229, 1765976, 2207470, 3090458, 4414940, 6180916, 7726145, 8829880, 10375109, 12361832, 15452290, 20750218, 30904580, 41500436, 51875545, 61809160, 72625763, 83000872, 103751090, 145251526, 207502180, 290503052, 363128815, 415004360, 581006104, 726257630, 1452515260, 2905030520]

約数ペア:

[(1, 2905030520), (2, 1452515260), (4, 726257630), (5, 581006104), (7, 415004360), (8, 363128815), (10, 290503052), (14, 207502180), (20, 145251526), (28, 103751090), (35, 83000872), (40, 72625763), (47, 61809160), (56, 51875545), (70, 41500436), (94, 30904580), (140, 20750218), (188, 15452290), (235, 12361832), (280, 10375109), (329, 8829880), (376, 7726145), (470, 6180916), (658, 4414940), (940, 3090458), (1316, 2207470), (1645, 1765976), (1880, 1545229), (2632, 1103735), (3290, 882988), (6580, 441494), (13160, 220747)]