121281920

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6113}}^1$

素因数の和:6163

約数の個数: 64

約数和(自身を含む): 299341440

約数和(自身を除く): 178059520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6113, 9920, 12226, 19840, 24452, 30565, 48904, 61130, 97808, 122260, 189503, 195616, 244520, 379006, 391232, 489040, 758012, 782464, 947515, 978080, 1516024, 1895030, 1956160, 3032048, 3790060, 3912320, 6064096, 7580120, 12128192, 15160240, 24256384, 30320480, 60640960, 121281920]

約数ペア:

[(1, 121281920), (2, 60640960), (4, 30320480), (5, 24256384), (8, 15160240), (10, 12128192), (16, 7580120), (20, 6064096), (31, 3912320), (32, 3790060), (40, 3032048), (62, 1956160), (64, 1895030), (80, 1516024), (124, 978080), (128, 947515), (155, 782464), (160, 758012), (248, 489040), (310, 391232), (320, 379006), (496, 244520), (620, 195616), (640, 189503), (992, 122260), (1240, 97808), (1984, 61130), (2480, 48904), (3968, 30565), (4960, 24452), (6113, 19840), (9920, 12226)]