20419312

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1831}}^1$

素因数の和:1897

約数の個数: 40

約数和(自身を含む): 42934752

約数和(自身を除く): 22515440

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 136, 164, 272, 328, 656, 697, 1394, 1831, 2788, 3662, 5576, 7324, 11152, 14648, 29296, 31127, 62254, 75071, 124508, 150142, 249016, 300284, 498032, 600568, 1201136, 1276207, 2552414, 5104828, 10209656, 20419312]

約数ペア:

[(1, 20419312), (2, 10209656), (4, 5104828), (8, 2552414), (16, 1276207), (17, 1201136), (34, 600568), (41, 498032), (68, 300284), (82, 249016), (136, 150142), (164, 124508), (272, 75071), (328, 62254), (656, 31127), (697, 29296), (1394, 14648), (1831, 11152), (2788, 7324), (3662, 5576)]