31201885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{151}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 47037312

約数和(自身を除く): 15835427

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 151, 187, 221, 289, 715, 755, 935, 1105, 1445, 1661, 1963, 2431, 2567, 3179, 3757, 8305, 9815, 12155, 12835, 15895, 18785, 21593, 28237, 33371, 41327, 43639, 107965, 141185, 166855, 206635, 218195, 367081, 480029, 567307, 1835405, 2400145, 2836535, 6240377, 31201885]

約数ペア:

[(1, 31201885), (5, 6240377), (11, 2836535), (13, 2400145), (17, 1835405), (55, 567307), (65, 480029), (85, 367081), (143, 218195), (151, 206635), (187, 166855), (221, 141185), (289, 107965), (715, 43639), (755, 41327), (935, 33371), (1105, 28237), (1445, 21593), (1661, 18785), (1963, 15895), (2431, 12835), (2567, 12155), (3179, 9815), (3757, 8305)]