31317660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15817}}^1$

素因数の和:15843

約数の個数: 72

約数和(自身を含む): 103639536

約数和(自身を除く): 72321876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 15817, 31634, 47451, 63268, 79085, 94902, 142353, 158170, 173987, 189804, 237255, 284706, 316340, 347974, 474510, 521961, 569412, 695948, 711765, 869935, 949020, 1043922, 1423530, 1565883, 1739870, 2087844, 2609805, 2847060, 3131766, 3479740, 5219610, 6263532, 7829415, 10439220, 15658830, 31317660]

約数ペア:

[(1, 31317660), (2, 15658830), (3, 10439220), (4, 7829415), (5, 6263532), (6, 5219610), (9, 3479740), (10, 3131766), (11, 2847060), (12, 2609805), (15, 2087844), (18, 1739870), (20, 1565883), (22, 1423530), (30, 1043922), (33, 949020), (36, 869935), (44, 711765), (45, 695948), (55, 569412), (60, 521961), (66, 474510), (90, 347974), (99, 316340), (110, 284706), (132, 237255), (165, 189804), (180, 173987), (198, 158170), (220, 142353), (330, 94902), (396, 79085), (495, 63268), (660, 47451), (990, 31634), (1980, 15817)]