20178775855

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3221}}^1\times {\mathrm{10529}}^1$

素因数の和:13779

約数の個数: 32

約数和(自身を含む): 29313498240

約数和(自身を除く): 9134722385

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 3221, 10529, 16105, 22547, 52645, 54757, 73703, 112735, 178993, 273785, 368515, 383299, 894965, 1252951, 1916495, 6264755, 33913909, 169569545, 237397363, 576536453, 1186986815, 2882682265, 4035755171, 20178775855]

約数ペア:

[(1, 20178775855), (5, 4035755171), (7, 2882682265), (17, 1186986815), (35, 576536453), (85, 237397363), (119, 169569545), (595, 33913909), (3221, 6264755), (10529, 1916495), (16105, 1252951), (22547, 894965), (52645, 383299), (54757, 368515), (73703, 273785), (112735, 178993)]