258917840

素因数分解:

$2^4\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{2297}}^1$

素因数の和:3719

約数の個数: 40

約数和(自身を含む): 602673480

約数和(自身を除く): 343755640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1409, 2297, 2818, 4594, 5636, 7045, 9188, 11272, 11485, 14090, 18376, 22544, 22970, 28180, 36752, 45940, 56360, 91880, 112720, 183760, 3236473, 6472946, 12945892, 16182365, 25891784, 32364730, 51783568, 64729460, 129458920, 258917840]

約数ペア:

[(1, 258917840), (2, 129458920), (4, 64729460), (5, 51783568), (8, 32364730), (10, 25891784), (16, 16182365), (20, 12945892), (40, 6472946), (80, 3236473), (1409, 183760), (2297, 112720), (2818, 91880), (4594, 56360), (5636, 45940), (7045, 36752), (9188, 28180), (11272, 22970), (11485, 22544), (14090, 18376)]