31195400

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{2557}}^1$

素因数の和:2634

約数の個数: 48

約数和(自身を含む): 73747140

約数和(自身を除く): 42551740

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 200, 244, 305, 488, 610, 1220, 1525, 2440, 2557, 3050, 5114, 6100, 10228, 12200, 12785, 20456, 25570, 51140, 63925, 102280, 127850, 155977, 255700, 311954, 511400, 623908, 779885, 1247816, 1559770, 3119540, 3899425, 6239080, 7798850, 15597700, 31195400]

約数ペア:

[(1, 31195400), (2, 15597700), (4, 7798850), (5, 6239080), (8, 3899425), (10, 3119540), (20, 1559770), (25, 1247816), (40, 779885), (50, 623908), (61, 511400), (100, 311954), (122, 255700), (200, 155977), (244, 127850), (305, 102280), (488, 63925), (610, 51140), (1220, 25570), (1525, 20456), (2440, 12785), (2557, 12200), (3050, 10228), (5114, 6100)]