199910180

素因数分解:

$2^2\times 5^1\times {\mathrm{1823}}^1\times {\mathrm{5483}}^1$

素因数の和:7315

約数の個数: 24

約数和(自身を含む): 420118272

約数和(自身を除く): 220208092

約数列:

[1, 2, 4, 5, 10, 20, 1823, 3646, 5483, 7292, 9115, 10966, 18230, 21932, 27415, 36460, 54830, 109660, 9995509, 19991018, 39982036, 49977545, 99955090, 199910180]

約数ペア:

[(1, 199910180), (2, 99955090), (4, 49977545), (5, 39982036), (10, 19991018), (20, 9995509), (1823, 109660), (3646, 54830), (5483, 36460), (7292, 27415), (9115, 21932), (10966, 18230)]