20360275

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 36

約数和(自身を含む): 28138080

約数和(自身を除く): 7777805

約数列:

[1, 5, 13, 25, 61, 65, 79, 169, 305, 325, 395, 793, 845, 1027, 1525, 1975, 3965, 4225, 4819, 5135, 10309, 13351, 19825, 24095, 25675, 51545, 62647, 66755, 120475, 257725, 313235, 333775, 814411, 1566175, 4072055, 20360275]

約数ペア:

[(1, 20360275), (5, 4072055), (13, 1566175), (25, 814411), (61, 333775), (65, 313235), (79, 257725), (169, 120475), (305, 66755), (325, 62647), (395, 51545), (793, 25675), (845, 24095), (1027, 19825), (1525, 13351), (1975, 10309), (3965, 5135), (4225, 4819)]