20878093150

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1\times {\mathrm{587}}^1$

素因数の和:946

約数の個数: 96

約数和(自身を含む): 40537905408

約数和(自身を除く): 19659812258

約数列:

[1, 2, 5, 10, 25, 43, 50, 71, 86, 142, 215, 233, 355, 430, 466, 587, 710, 1075, 1165, 1174, 1775, 2150, 2330, 2935, 3053, 3550, 5825, 5870, 6106, 10019, 11650, 14675, 15265, 16543, 20038, 25241, 29350, 30530, 33086, 41677, 50095, 50482, 76325, 82715, 83354, 100190, 126205, 136771, 152650, 165430, 208385, 250475, 252410, 273542, 413575, 416770, 500950, 631025, 683855, 711349, 827150, 1041925, 1262050, 1367710, 1422698, 1792111, 2083850, 3419275, 3556745, 3584222, 5881153, 6838550, 7113490, 8960555, 9710741, 11762306, 17783725, 17921110, 19421482, 29405765, 35567450, 44802775, 48553705, 58811530, 89605550, 97107410, 147028825, 242768525, 294057650, 417561863, 485537050, 835123726, 2087809315, 4175618630, 10439046575, 20878093150]

約数ペア:

[(1, 20878093150), (2, 10439046575), (5, 4175618630), (10, 2087809315), (25, 835123726), (43, 485537050), (50, 417561863), (71, 294057650), (86, 242768525), (142, 147028825), (215, 97107410), (233, 89605550), (355, 58811530), (430, 48553705), (466, 44802775), (587, 35567450), (710, 29405765), (1075, 19421482), (1165, 17921110), (1174, 17783725), (1775, 11762306), (2150, 9710741), (2330, 8960555), (2935, 7113490), (3053, 6838550), (3550, 5881153), (5825, 3584222), (5870, 3556745), (6106, 3419275), (10019, 2083850), (11650, 1792111), (14675, 1422698), (15265, 1367710), (16543, 1262050), (20038, 1041925), (25241, 827150), (29350, 711349), (30530, 683855), (33086, 631025), (41677, 500950), (50095, 416770), (50482, 413575), (76325, 273542), (82715, 252410), (83354, 250475), (100190, 208385), (126205, 165430), (136771, 152650)]