20001888

素因数分解:

$2^5\times 3^2\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:564

約数の個数: 72

約数和(自身を含む): 57330000

約数和(自身を除く): 37328112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 199, 288, 349, 398, 597, 698, 796, 1047, 1194, 1396, 1592, 1791, 2094, 2388, 2792, 3141, 3184, 3582, 4188, 4776, 5584, 6282, 6368, 7164, 8376, 9552, 11168, 12564, 14328, 16752, 19104, 25128, 28656, 33504, 50256, 57312, 69451, 100512, 138902, 208353, 277804, 416706, 555608, 625059, 833412, 1111216, 1250118, 1666824, 2222432, 2500236, 3333648, 5000472, 6667296, 10000944, 20001888]

約数ペア:

[(1, 20001888), (2, 10000944), (3, 6667296), (4, 5000472), (6, 3333648), (8, 2500236), (9, 2222432), (12, 1666824), (16, 1250118), (18, 1111216), (24, 833412), (32, 625059), (36, 555608), (48, 416706), (72, 277804), (96, 208353), (144, 138902), (199, 100512), (288, 69451), (349, 57312), (398, 50256), (597, 33504), (698, 28656), (796, 25128), (1047, 19104), (1194, 16752), (1396, 14328), (1592, 12564), (1791, 11168), (2094, 9552), (2388, 8376), (2792, 7164), (3141, 6368), (3184, 6282), (3582, 5584), (4188, 4776)]