20011553128

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{344599}}^1$

素因数の和:344690

約数の個数: 64

約数和(自身を含む): 46148832000

約数和(自身を除く): 26137278872

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 61, 68, 119, 122, 136, 238, 244, 427, 476, 488, 854, 952, 1037, 1708, 2074, 3416, 4148, 7259, 8296, 14518, 29036, 58072, 344599, 689198, 1378396, 2412193, 2756792, 4824386, 5858183, 9648772, 11716366, 19297544, 21020539, 23432732, 41007281, 42041078, 46865464, 82014562, 84082156, 147143773, 164029124, 168164312, 294287546, 328058248, 357349163, 588575092, 714698326, 1177150184, 1429396652, 2501444141, 2858793304, 5002888282, 10005776564, 20011553128]

約数ペア:

[(1, 20011553128), (2, 10005776564), (4, 5002888282), (7, 2858793304), (8, 2501444141), (14, 1429396652), (17, 1177150184), (28, 714698326), (34, 588575092), (56, 357349163), (61, 328058248), (68, 294287546), (119, 168164312), (122, 164029124), (136, 147143773), (238, 84082156), (244, 82014562), (427, 46865464), (476, 42041078), (488, 41007281), (854, 23432732), (952, 21020539), (1037, 19297544), (1708, 11716366), (2074, 9648772), (3416, 5858183), (4148, 4824386), (7259, 2756792), (8296, 2412193), (14518, 1378396), (29036, 689198), (58072, 344599)]