31939765

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 47190528

約数和(自身を除く): 15250763

約数列:

[1, 5, 11, 13, 31, 55, 65, 121, 131, 143, 155, 341, 403, 605, 655, 715, 1441, 1573, 1703, 1705, 2015, 3751, 4061, 4433, 7205, 7865, 8515, 15851, 18733, 18755, 20305, 22165, 44671, 48763, 52793, 79255, 93665, 206063, 223355, 243815, 263965, 491381, 580723, 1030315, 2456905, 2903615, 6387953, 31939765]

約数ペア:

[(1, 31939765), (5, 6387953), (11, 2903615), (13, 2456905), (31, 1030315), (55, 580723), (65, 491381), (121, 263965), (131, 243815), (143, 223355), (155, 206063), (341, 93665), (403, 79255), (605, 52793), (655, 48763), (715, 44671), (1441, 22165), (1573, 20305), (1703, 18755), (1705, 18733), (2015, 15851), (3751, 8515), (4061, 7865), (4433, 7205)]