20825010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3259}}^1$

素因数の和:3343

約数の個数: 48

約数和(自身を含む): 54924480

約数和(自身を除く): 34099470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 3259, 6390, 6518, 9777, 16295, 19554, 29331, 32590, 48885, 58662, 97770, 146655, 231389, 293310, 462778, 694167, 1156945, 1388334, 2082501, 2313890, 3470835, 4165002, 6941670, 10412505, 20825010]

約数ペア:

[(1, 20825010), (2, 10412505), (3, 6941670), (5, 4165002), (6, 3470835), (9, 2313890), (10, 2082501), (15, 1388334), (18, 1156945), (30, 694167), (45, 462778), (71, 293310), (90, 231389), (142, 146655), (213, 97770), (355, 58662), (426, 48885), (639, 32590), (710, 29331), (1065, 19554), (1278, 16295), (2130, 9777), (3195, 6518), (3259, 6390)]