218693785

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 278704800

約数和(自身を除く): 60011015

約数列:

[1, 5, 29, 101, 109, 137, 145, 505, 545, 685, 2929, 3161, 3973, 11009, 13837, 14645, 14933, 15805, 19865, 55045, 69185, 74665, 319261, 401273, 433057, 1508233, 1596305, 2006365, 2165285, 7541165, 43738757, 218693785]

約数ペア:

[(1, 218693785), (5, 43738757), (29, 7541165), (101, 2165285), (109, 2006365), (137, 1596305), (145, 1508233), (505, 433057), (545, 401273), (685, 319261), (2929, 74665), (3161, 69185), (3973, 55045), (11009, 19865), (13837, 15805), (14645, 14933)]