72172540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{1307}}^1$

素因数の和:1578

約数の個数: 48

約数和(自身を含む): 166126464

約数和(自身を除く): 93953924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 502, 1004, 1255, 1307, 2510, 2614, 2761, 5020, 5228, 5522, 6535, 11044, 13070, 13805, 14377, 26140, 27610, 28754, 55220, 57508, 71885, 143770, 287540, 328057, 656114, 1312228, 1640285, 3280570, 3608627, 6561140, 7217254, 14434508, 18043135, 36086270, 72172540]

約数ペア:

[(1, 72172540), (2, 36086270), (4, 18043135), (5, 14434508), (10, 7217254), (11, 6561140), (20, 3608627), (22, 3280570), (44, 1640285), (55, 1312228), (110, 656114), (220, 328057), (251, 287540), (502, 143770), (1004, 71885), (1255, 57508), (1307, 55220), (2510, 28754), (2614, 27610), (2761, 26140), (5020, 14377), (5228, 13805), (5522, 13070), (6535, 11044)]