64915780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1229}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 144648000

約数和(自身を除く): 79732220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1229, 1390, 2458, 2641, 2780, 4916, 5282, 6145, 10564, 12290, 13205, 23351, 24580, 26410, 46702, 52820, 93404, 116755, 170831, 233510, 341662, 467020, 683324, 854155, 1708310, 3245789, 3416620, 6491578, 12983156, 16228945, 32457890, 64915780]

約数ペア:

[(1, 64915780), (2, 32457890), (4, 16228945), (5, 12983156), (10, 6491578), (19, 3416620), (20, 3245789), (38, 1708310), (76, 854155), (95, 683324), (139, 467020), (190, 341662), (278, 233510), (380, 170831), (556, 116755), (695, 93404), (1229, 52820), (1390, 46702), (2458, 26410), (2641, 24580), (2780, 23351), (4916, 13205), (5282, 12290), (6145, 10564)]