287990180

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1\times {\mathrm{401}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 612889200

約数和(自身を除く): 324899020

約数列:

[1, 2, 4, 5, 10, 20, 149, 241, 298, 401, 482, 596, 745, 802, 964, 1205, 1490, 1604, 2005, 2410, 2980, 4010, 4820, 8020, 35909, 59749, 71818, 96641, 119498, 143636, 179545, 193282, 238996, 298745, 359090, 386564, 483205, 597490, 718180, 966410, 1194980, 1932820, 14399509, 28799018, 57598036, 71997545, 143995090, 287990180]

約数ペア:

[(1, 287990180), (2, 143995090), (4, 71997545), (5, 57598036), (10, 28799018), (20, 14399509), (149, 1932820), (241, 1194980), (298, 966410), (401, 718180), (482, 597490), (596, 483205), (745, 386564), (802, 359090), (964, 298745), (1205, 238996), (1490, 193282), (1604, 179545), (2005, 143636), (2410, 119498), (2980, 96641), (4010, 71818), (4820, 59749), (8020, 35909)]