81981928

素因数分解:

$2^3\times 7^1\times {\mathrm{367}}^1\times {\mathrm{3989}}^1$

素因数の和:4369

約数の個数: 32

約数和(自身を含む): 176198400

約数和(自身を除く): 94216472

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 367, 734, 1468, 2569, 2936, 3989, 5138, 7978, 10276, 15956, 20552, 27923, 31912, 55846, 111692, 223384, 1463963, 2927926, 5855852, 10247741, 11711704, 20495482, 40990964, 81981928]

約数ペア:

[(1, 81981928), (2, 40990964), (4, 20495482), (7, 11711704), (8, 10247741), (14, 5855852), (28, 2927926), (56, 1463963), (367, 223384), (734, 111692), (1468, 55846), (2569, 31912), (2936, 27923), (3989, 20552), (5138, 15956), (7978, 10276)]