2019439820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3257161}}^1$

素因数の和:3257201

約数の個数: 24

約数和(自身を含む): 4377625728

約数和(自身を除く): 2358185908

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 3257161, 6514322, 13028644, 16285805, 32571610, 65143220, 100971991, 201943982, 403887964, 504859955, 1009719910, 2019439820]

約数ペア:

[(1, 2019439820), (2, 1009719910), (4, 504859955), (5, 403887964), (10, 201943982), (20, 100971991), (31, 65143220), (62, 32571610), (124, 16285805), (155, 13028644), (310, 6514322), (620, 3257161)]