858589640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{11351}}^1$

素因数の和:11454

約数の個数: 64

約数和(自身を含む): 2027013120

約数和(自身を除く): 1168423480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1220, 1240, 1891, 2440, 3782, 7564, 9455, 11351, 15128, 18910, 22702, 37820, 45404, 56755, 75640, 90808, 113510, 227020, 351881, 454040, 692411, 703762, 1384822, 1407524, 1759405, 2769644, 2815048, 3462055, 3518810, 5539288, 6924110, 7037620, 13848220, 14075240, 21464741, 27696440, 42929482, 85858964, 107323705, 171717928, 214647410, 429294820, 858589640]

約数ペア:

[(1, 858589640), (2, 429294820), (4, 214647410), (5, 171717928), (8, 107323705), (10, 85858964), (20, 42929482), (31, 27696440), (40, 21464741), (61, 14075240), (62, 13848220), (122, 7037620), (124, 6924110), (155, 5539288), (244, 3518810), (248, 3462055), (305, 2815048), (310, 2769644), (488, 1759405), (610, 1407524), (620, 1384822), (1220, 703762), (1240, 692411), (1891, 454040), (2440, 351881), (3782, 227020), (7564, 113510), (9455, 90808), (11351, 75640), (15128, 56755), (18910, 45404), (22702, 37820)]