77619640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{277213}}^1$

素因数の和:277231

約数の個数: 32

約数和(自身を含む): 199594080

約数和(自身を除く): 121974440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 277213, 554426, 1108852, 1386065, 1940491, 2217704, 2772130, 3880982, 5544260, 7761964, 9702455, 11088520, 15523928, 19404910, 38809820, 77619640]

約数ペア:

[(1, 77619640), (2, 38809820), (4, 19404910), (5, 15523928), (7, 11088520), (8, 9702455), (10, 7761964), (14, 5544260), (20, 3880982), (28, 2772130), (35, 2217704), (40, 1940491), (56, 1386065), (70, 1108852), (140, 554426), (280, 277213)]