81542720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{617}}^1$

素因数の和:700

約数の個数: 112

約数和(自身を含む): 226039680

約数和(自身を除く): 144496960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 64, 70, 80, 112, 118, 140, 160, 224, 236, 280, 295, 320, 413, 448, 472, 560, 590, 617, 826, 944, 1120, 1180, 1234, 1652, 1888, 2065, 2240, 2360, 2468, 3085, 3304, 3776, 4130, 4319, 4720, 4936, 6170, 6608, 8260, 8638, 9440, 9872, 12340, 13216, 16520, 17276, 18880, 19744, 21595, 24680, 26432, 33040, 34552, 36403, 39488, 43190, 49360, 66080, 69104, 72806, 86380, 98720, 132160, 138208, 145612, 172760, 182015, 197440, 254821, 276416, 291224, 345520, 364030, 509642, 582448, 691040, 728060, 1019284, 1164896, 1274105, 1382080, 1456120, 2038568, 2329792, 2548210, 2912240, 4077136, 5096420, 5824480, 8154272, 10192840, 11648960, 16308544, 20385680, 40771360, 81542720]

約数ペア:

[(1, 81542720), (2, 40771360), (4, 20385680), (5, 16308544), (7, 11648960), (8, 10192840), (10, 8154272), (14, 5824480), (16, 5096420), (20, 4077136), (28, 2912240), (32, 2548210), (35, 2329792), (40, 2038568), (56, 1456120), (59, 1382080), (64, 1274105), (70, 1164896), (80, 1019284), (112, 728060), (118, 691040), (140, 582448), (160, 509642), (224, 364030), (236, 345520), (280, 291224), (295, 276416), (320, 254821), (413, 197440), (448, 182015), (472, 172760), (560, 145612), (590, 138208), (617, 132160), (826, 98720), (944, 86380), (1120, 72806), (1180, 69104), (1234, 66080), (1652, 49360), (1888, 43190), (2065, 39488), (2240, 36403), (2360, 34552), (2468, 33040), (3085, 26432), (3304, 24680), (3776, 21595), (4130, 19744), (4319, 18880), (4720, 17276), (4936, 16520), (6170, 13216), (6608, 12340), (8260, 9872), (8638, 9440)]