20285488

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:190

約数の個数: 60

約数和(自身を含む): 43169112

約数和(自身を除く): 22883624

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 107, 136, 164, 214, 272, 289, 328, 428, 578, 656, 697, 856, 1156, 1394, 1712, 1819, 2312, 2788, 3638, 4387, 4624, 5576, 7276, 8774, 11152, 11849, 14552, 17548, 23698, 29104, 30923, 35096, 47396, 61846, 70192, 74579, 94792, 123692, 149158, 189584, 247384, 298316, 494768, 596632, 1193264, 1267843, 2535686, 5071372, 10142744, 20285488]

約数ペア:

[(1, 20285488), (2, 10142744), (4, 5071372), (8, 2535686), (16, 1267843), (17, 1193264), (34, 596632), (41, 494768), (68, 298316), (82, 247384), (107, 189584), (136, 149158), (164, 123692), (214, 94792), (272, 74579), (289, 70192), (328, 61846), (428, 47396), (578, 35096), (656, 30923), (697, 29104), (856, 23698), (1156, 17548), (1394, 14552), (1712, 11849), (1819, 11152), (2312, 8774), (2788, 7276), (3638, 5576), (4387, 4624)]