15564620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 33784128

約数和(自身を除く): 18219508

約数列:

[1, 2, 4, 5, 10, 20, 71, 97, 113, 142, 194, 226, 284, 355, 388, 452, 485, 565, 710, 970, 1130, 1420, 1940, 2260, 6887, 8023, 10961, 13774, 16046, 21922, 27548, 32092, 34435, 40115, 43844, 54805, 68870, 80230, 109610, 137740, 160460, 219220, 778231, 1556462, 3112924, 3891155, 7782310, 15564620]

約数ペア:

[(1, 15564620), (2, 7782310), (4, 3891155), (5, 3112924), (10, 1556462), (20, 778231), (71, 219220), (97, 160460), (113, 137740), (142, 109610), (194, 80230), (226, 68870), (284, 54805), (355, 43844), (388, 40115), (452, 34435), (485, 32092), (565, 27548), (710, 21922), (970, 16046), (1130, 13774), (1420, 10961), (1940, 8023), (2260, 6887)]