19846640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1187}}^1$

素因数の和:1230

約数の個数: 80

約数和(自身を含む): 53032320

約数和(自身を除く): 33185680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1187, 1520, 1672, 2090, 2374, 3344, 4180, 4748, 5935, 8360, 9496, 11870, 13057, 16720, 18992, 22553, 23740, 26114, 45106, 47480, 52228, 65285, 90212, 94960, 104456, 112765, 130570, 180424, 208912, 225530, 248083, 261140, 360848, 451060, 496166, 522280, 902120, 992332, 1044560, 1240415, 1804240, 1984664, 2480830, 3969328, 4961660, 9923320, 19846640]

約数ペア:

[(1, 19846640), (2, 9923320), (4, 4961660), (5, 3969328), (8, 2480830), (10, 1984664), (11, 1804240), (16, 1240415), (19, 1044560), (20, 992332), (22, 902120), (38, 522280), (40, 496166), (44, 451060), (55, 360848), (76, 261140), (80, 248083), (88, 225530), (95, 208912), (110, 180424), (152, 130570), (176, 112765), (190, 104456), (209, 94960), (220, 90212), (304, 65285), (380, 52228), (418, 47480), (440, 45106), (760, 26114), (836, 23740), (880, 22553), (1045, 18992), (1187, 16720), (1520, 13057), (1672, 11870), (2090, 9496), (2374, 8360), (3344, 5935), (4180, 4748)]