20147270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 43412544

約数和(自身を除く): 23265274

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 73, 110, 130, 143, 146, 193, 286, 365, 386, 715, 730, 803, 949, 965, 1430, 1606, 1898, 1930, 2123, 2509, 4015, 4246, 4745, 5018, 8030, 9490, 10439, 10615, 12545, 14089, 20878, 21230, 25090, 27599, 28178, 52195, 55198, 70445, 104390, 137995, 140890, 154979, 183157, 275990, 309958, 366314, 774895, 915785, 1549790, 1831570, 2014727, 4029454, 10073635, 20147270]

約数ペア:

[(1, 20147270), (2, 10073635), (5, 4029454), (10, 2014727), (11, 1831570), (13, 1549790), (22, 915785), (26, 774895), (55, 366314), (65, 309958), (73, 275990), (110, 183157), (130, 154979), (143, 140890), (146, 137995), (193, 104390), (286, 70445), (365, 55198), (386, 52195), (715, 28178), (730, 27599), (803, 25090), (949, 21230), (965, 20878), (1430, 14089), (1606, 12545), (1898, 10615), (1930, 10439), (2123, 9490), (2509, 8030), (4015, 5018), (4246, 4745)]