77409080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{276461}}^1$

素因数の和:276479

約数の個数: 32

約数和(自身を含む): 199052640

約数和(自身を除く): 121643560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 276461, 552922, 1105844, 1382305, 1935227, 2211688, 2764610, 3870454, 5529220, 7740908, 9676135, 11058440, 15481816, 19352270, 38704540, 77409080]

約数ペア:

[(1, 77409080), (2, 38704540), (4, 19352270), (5, 15481816), (7, 11058440), (8, 9676135), (10, 7740908), (14, 5529220), (20, 3870454), (28, 2764610), (35, 2211688), (40, 1935227), (56, 1382305), (70, 1105844), (140, 552922), (280, 276461)]