81789680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7687}}^1$

素因数の和:7726

約数の個数: 80

約数和(自身を含む): 228794880

約数和(自身を除く): 147005200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 7687, 10640, 15374, 30748, 38435, 53809, 61496, 76870, 107618, 122992, 146053, 153740, 215236, 269045, 292106, 307480, 430472, 538090, 584212, 614960, 730265, 860944, 1022371, 1076180, 1168424, 1460530, 2044742, 2152360, 2336848, 2921060, 4089484, 4304720, 5111855, 5842120, 8178968, 10223710, 11684240, 16357936, 20447420, 40894840, 81789680]

約数ペア:

[(1, 81789680), (2, 40894840), (4, 20447420), (5, 16357936), (7, 11684240), (8, 10223710), (10, 8178968), (14, 5842120), (16, 5111855), (19, 4304720), (20, 4089484), (28, 2921060), (35, 2336848), (38, 2152360), (40, 2044742), (56, 1460530), (70, 1168424), (76, 1076180), (80, 1022371), (95, 860944), (112, 730265), (133, 614960), (140, 584212), (152, 538090), (190, 430472), (266, 307480), (280, 292106), (304, 269045), (380, 215236), (532, 153740), (560, 146053), (665, 122992), (760, 107618), (1064, 76870), (1330, 61496), (1520, 53809), (2128, 38435), (2660, 30748), (5320, 15374), (7687, 10640)]