218916505

素因数分解:

$5^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1\times {\mathrm{659}}^1$

素因数の和:801

約数の個数: 24

約数和(自身を含む): 275932800

約数和(自身を除く): 57016295

約数列:

[1, 5, 29, 79, 145, 395, 659, 841, 2291, 3295, 4205, 11455, 19111, 52061, 66439, 95555, 260305, 332195, 554219, 1509769, 2771095, 7548845, 43783301, 218916505]

約数ペア:

[(1, 218916505), (5, 43783301), (29, 7548845), (79, 2771095), (145, 1509769), (395, 554219), (659, 332195), (841, 260305), (2291, 95555), (3295, 66439), (4205, 52061), (11455, 19111)]