20397656

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{503}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 39644640

約数和(自身を除く): 19246984

約数列:

[1, 2, 4, 8, 37, 74, 137, 148, 274, 296, 503, 548, 1006, 1096, 2012, 4024, 5069, 10138, 18611, 20276, 37222, 40552, 68911, 74444, 137822, 148888, 275644, 551288, 2549707, 5099414, 10198828, 20397656]

約数ペア:

[(1, 20397656), (2, 10198828), (4, 5099414), (8, 2549707), (37, 551288), (74, 275644), (137, 148888), (148, 137822), (274, 74444), (296, 68911), (503, 40552), (548, 37222), (1006, 20276), (1096, 18611), (2012, 10138), (4024, 5069)]