220120615

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9931}}^1$

素因数の和:9991

約数の個数: 32

約数和(自身を含む): 320366592

約数和(自身を除く): 100245977

約数列:

[1, 5, 11, 13, 31, 55, 65, 143, 155, 341, 403, 715, 1705, 2015, 4433, 9931, 22165, 49655, 109241, 129103, 307861, 546205, 645515, 1420133, 1539305, 3386471, 4002193, 7100665, 16932355, 20010965, 44024123, 220120615]

約数ペア:

[(1, 220120615), (5, 44024123), (11, 20010965), (13, 16932355), (31, 7100665), (55, 4002193), (65, 3386471), (143, 1539305), (155, 1420133), (341, 645515), (403, 546205), (715, 307861), (1705, 129103), (2015, 109241), (4433, 49655), (9931, 22165)]