77859740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1321}}^1$

素因数の和:1758

約数の個数: 48

約数和(自身を含む): 187449024

約数和(自身を除く): 109589284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 421, 842, 1321, 1684, 2105, 2642, 2947, 4210, 5284, 5894, 6605, 8420, 9247, 11788, 13210, 14735, 18494, 26420, 29470, 36988, 46235, 58940, 92470, 184940, 556141, 1112282, 2224564, 2780705, 3892987, 5561410, 7785974, 11122820, 15571948, 19464935, 38929870, 77859740]

約数ペア:

[(1, 77859740), (2, 38929870), (4, 19464935), (5, 15571948), (7, 11122820), (10, 7785974), (14, 5561410), (20, 3892987), (28, 2780705), (35, 2224564), (70, 1112282), (140, 556141), (421, 184940), (842, 92470), (1321, 58940), (1684, 46235), (2105, 36988), (2642, 29470), (2947, 26420), (4210, 18494), (5284, 14735), (5894, 13210), (6605, 11788), (8420, 9247)]