20778858736

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{26627}}^1$

素因数の和:26822

約数の個数: 80

約数和(自身を含む): 45169608960

約数和(自身を除く): 24390750224

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 151, 152, 272, 302, 304, 323, 604, 646, 1208, 1292, 2416, 2567, 2584, 2869, 5134, 5168, 5738, 10268, 11476, 20536, 22952, 26627, 41072, 45904, 48773, 53254, 97546, 106508, 195092, 213016, 390184, 426032, 452659, 505913, 780368, 905318, 1011826, 1810636, 2023652, 3621272, 4020677, 4047304, 7242544, 8041354, 8094608, 8600521, 16082708, 17201042, 32165416, 34402084, 64330832, 68351509, 68804168, 76392863, 136703018, 137608336, 152785726, 273406036, 305571452, 546812072, 611142904, 1093624144, 1222285808, 1298678671, 2597357342, 5194714684, 10389429368, 20778858736]

約数ペア:

[(1, 20778858736), (2, 10389429368), (4, 5194714684), (8, 2597357342), (16, 1298678671), (17, 1222285808), (19, 1093624144), (34, 611142904), (38, 546812072), (68, 305571452), (76, 273406036), (136, 152785726), (151, 137608336), (152, 136703018), (272, 76392863), (302, 68804168), (304, 68351509), (323, 64330832), (604, 34402084), (646, 32165416), (1208, 17201042), (1292, 16082708), (2416, 8600521), (2567, 8094608), (2584, 8041354), (2869, 7242544), (5134, 4047304), (5168, 4020677), (5738, 3621272), (10268, 2023652), (11476, 1810636), (20536, 1011826), (22952, 905318), (26627, 780368), (41072, 505913), (45904, 452659), (48773, 426032), (53254, 390184), (97546, 213016), (106508, 195092)]