20834275

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 32855040

約数和(自身を除く): 12020765

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 79, 137, 175, 275, 385, 395, 553, 685, 869, 959, 1507, 1925, 1975, 2765, 3425, 4345, 4795, 6083, 7535, 10549, 10823, 13825, 21725, 23975, 30415, 37675, 52745, 54115, 75761, 119053, 152075, 263725, 270575, 378805, 595265, 833371, 1894025, 2976325, 4166855, 20834275]

約数ペア:

[(1, 20834275), (5, 4166855), (7, 2976325), (11, 1894025), (25, 833371), (35, 595265), (55, 378805), (77, 270575), (79, 263725), (137, 152075), (175, 119053), (275, 75761), (385, 54115), (395, 52745), (553, 37675), (685, 30415), (869, 23975), (959, 21725), (1507, 13825), (1925, 10823), (1975, 10549), (2765, 7535), (3425, 6083), (4345, 4795)]