15820805

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 26611200

約数和(自身を除く): 10790395

約数列:

[1, 5, 7, 11, 13, 29, 35, 55, 65, 77, 91, 109, 143, 145, 203, 319, 377, 385, 455, 545, 715, 763, 1001, 1015, 1199, 1417, 1595, 1885, 2233, 2639, 3161, 3815, 4147, 5005, 5995, 7085, 8393, 9919, 11165, 13195, 15587, 15805, 20735, 22127, 29029, 34771, 41093, 41965, 49595, 77935, 109109, 110635, 145145, 173855, 205465, 243397, 287651, 452023, 545545, 1216985, 1438255, 2260115, 3164161, 15820805]

約数ペア:

[(1, 15820805), (5, 3164161), (7, 2260115), (11, 1438255), (13, 1216985), (29, 545545), (35, 452023), (55, 287651), (65, 243397), (77, 205465), (91, 173855), (109, 145145), (143, 110635), (145, 109109), (203, 77935), (319, 49595), (377, 41965), (385, 41093), (455, 34771), (545, 29029), (715, 22127), (763, 20735), (1001, 15805), (1015, 15587), (1199, 13195), (1417, 11165), (1595, 9919), (1885, 8393), (2233, 7085), (2639, 5995), (3161, 5005), (3815, 4147)]