997012820

素因数分解:

$2^2\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{42571}}^1$

素因数の和:43751

約数の個数: 24

約数和(自身を含む): 2095564128

約数和(自身を除く): 1098551308

約数列:

[1, 2, 4, 5, 10, 20, 1171, 2342, 4684, 5855, 11710, 23420, 42571, 85142, 170284, 212855, 425710, 851420, 49850641, 99701282, 199402564, 249253205, 498506410, 997012820]

約数ペア:

[(1, 997012820), (2, 498506410), (4, 249253205), (5, 199402564), (10, 99701282), (20, 49850641), (1171, 851420), (2342, 425710), (4684, 212855), (5855, 170284), (11710, 85142), (23420, 42571)]