20009312

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 41023584

約数和(自身を除く): 21014272

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 101, 151, 164, 202, 302, 328, 404, 604, 656, 808, 1208, 1312, 1616, 2416, 3232, 4141, 4832, 6191, 8282, 12382, 15251, 16564, 24764, 30502, 33128, 49528, 61004, 66256, 99056, 122008, 132512, 198112, 244016, 488032, 625291, 1250582, 2501164, 5002328, 10004656, 20009312]

約数ペア:

[(1, 20009312), (2, 10004656), (4, 5002328), (8, 2501164), (16, 1250582), (32, 625291), (41, 488032), (82, 244016), (101, 198112), (151, 132512), (164, 122008), (202, 99056), (302, 66256), (328, 61004), (404, 49528), (604, 33128), (656, 30502), (808, 24764), (1208, 16564), (1312, 15251), (1616, 12382), (2416, 8282), (3232, 6191), (4141, 4832)]