28148705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 38253600

約数和(自身を除く): 10104895

約数列:

[1, 5, 13, 29, 65, 109, 137, 145, 377, 545, 685, 1417, 1781, 1885, 3161, 3973, 7085, 8905, 14933, 15805, 19865, 41093, 51649, 74665, 194129, 205465, 258245, 433057, 970645, 2165285, 5629741, 28148705]

約数ペア:

[(1, 28148705), (5, 5629741), (13, 2165285), (29, 970645), (65, 433057), (109, 258245), (137, 205465), (145, 194129), (377, 74665), (545, 51649), (685, 41093), (1417, 19865), (1781, 15805), (1885, 14933), (3161, 8905), (3973, 7085)]