15691984568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1\times {\mathrm{2447}}^1$

素因数の和:2976

約数の個数: 64

約数和(自身を含む): 31961381760

約数和(自身を除く): 16269397192

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197, 313, 394, 626, 788, 1252, 1576, 2447, 2504, 2561, 4069, 4894, 5122, 8138, 9788, 10244, 16276, 19576, 20488, 31811, 32552, 61661, 63622, 123322, 127244, 246644, 254488, 482059, 493288, 765911, 801593, 964118, 1531822, 1603186, 1928236, 3063644, 3206372, 3856472, 6127288, 6266767, 6412744, 9956843, 12533534, 19913686, 25067068, 39827372, 50134136, 79654744, 150884467, 301768934, 603537868, 1207075736, 1961498071, 3922996142, 7845992284, 15691984568]

約数ペア:

[(1, 15691984568), (2, 7845992284), (4, 3922996142), (8, 1961498071), (13, 1207075736), (26, 603537868), (52, 301768934), (104, 150884467), (197, 79654744), (313, 50134136), (394, 39827372), (626, 25067068), (788, 19913686), (1252, 12533534), (1576, 9956843), (2447, 6412744), (2504, 6266767), (2561, 6127288), (4069, 3856472), (4894, 3206372), (5122, 3063644), (8138, 1928236), (9788, 1603186), (10244, 1531822), (16276, 964118), (19576, 801593), (20488, 765911), (31811, 493288), (32552, 482059), (61661, 254488), (63622, 246644), (123322, 127244)]