28019740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 72745344

約数和(自身を除く): 44725604

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 61, 68, 70, 85, 119, 122, 140, 170, 193, 238, 244, 305, 340, 386, 427, 476, 595, 610, 772, 854, 965, 1037, 1190, 1220, 1351, 1708, 1930, 2074, 2135, 2380, 2702, 3281, 3860, 4148, 4270, 5185, 5404, 6562, 6755, 7259, 8540, 10370, 11773, 13124, 13510, 14518, 16405, 20740, 22967, 23546, 27020, 29036, 32810, 36295, 45934, 47092, 58865, 65620, 72590, 82411, 91868, 114835, 117730, 145180, 164822, 200141, 229670, 235460, 329644, 400282, 412055, 459340, 800564, 824110, 1000705, 1400987, 1648220, 2001410, 2801974, 4002820, 5603948, 7004935, 14009870, 28019740]

約数ペア:

[(1, 28019740), (2, 14009870), (4, 7004935), (5, 5603948), (7, 4002820), (10, 2801974), (14, 2001410), (17, 1648220), (20, 1400987), (28, 1000705), (34, 824110), (35, 800564), (61, 459340), (68, 412055), (70, 400282), (85, 329644), (119, 235460), (122, 229670), (140, 200141), (170, 164822), (193, 145180), (238, 117730), (244, 114835), (305, 91868), (340, 82411), (386, 72590), (427, 65620), (476, 58865), (595, 47092), (610, 45934), (772, 36295), (854, 32810), (965, 29036), (1037, 27020), (1190, 23546), (1220, 22967), (1351, 20740), (1708, 16405), (1930, 14518), (2074, 13510), (2135, 13124), (2380, 11773), (2702, 10370), (3281, 8540), (3860, 7259), (4148, 6755), (4270, 6562), (5185, 5404)]