13581425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 20623680

約数和(自身を除く): 7042255

約数列:

[1, 5, 11, 13, 25, 29, 55, 65, 131, 143, 145, 275, 319, 325, 377, 655, 715, 725, 1441, 1595, 1703, 1885, 3275, 3575, 3799, 4147, 7205, 7975, 8515, 9425, 18733, 18995, 20735, 36025, 41789, 42575, 49387, 93665, 94975, 103675, 208945, 246935, 468325, 543257, 1044725, 1234675, 2716285, 13581425]

約数ペア:

[(1, 13581425), (5, 2716285), (11, 1234675), (13, 1044725), (25, 543257), (29, 468325), (55, 246935), (65, 208945), (131, 103675), (143, 94975), (145, 93665), (275, 49387), (319, 42575), (325, 41789), (377, 36025), (655, 20735), (715, 18995), (725, 18733), (1441, 9425), (1595, 8515), (1703, 7975), (1885, 7205), (3275, 4147), (3575, 3799)]