77731640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{39659}}^1$

素因数の和:39684

約数の個数: 48

約数和(自身を含む): 203455800

約数和(自身を除く): 125724160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 39659, 79318, 158636, 198295, 277613, 317272, 396590, 555226, 793180, 1110452, 1388065, 1586360, 1943291, 2220904, 2776130, 3886582, 5552260, 7773164, 9716455, 11104520, 15546328, 19432910, 38865820, 77731640]

約数ペア:

[(1, 77731640), (2, 38865820), (4, 19432910), (5, 15546328), (7, 11104520), (8, 9716455), (10, 7773164), (14, 5552260), (20, 3886582), (28, 2776130), (35, 2220904), (40, 1943291), (49, 1586360), (56, 1388065), (70, 1110452), (98, 793180), (140, 555226), (196, 396590), (245, 317272), (280, 277613), (392, 198295), (490, 158636), (980, 79318), (1960, 39659)]