77577640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{277063}}^1$

素因数の和:277081

約数の個数: 32

約数和(自身を含む): 199486080

約数和(自身を除く): 121908440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 277063, 554126, 1108252, 1385315, 1939441, 2216504, 2770630, 3878882, 5541260, 7757764, 9697205, 11082520, 15515528, 19394410, 38788820, 77577640]

約数ペア:

[(1, 77577640), (2, 38788820), (4, 19394410), (5, 15515528), (7, 11082520), (8, 9697205), (10, 7757764), (14, 5541260), (20, 3878882), (28, 2770630), (35, 2216504), (40, 1939441), (56, 1385315), (70, 1108252), (140, 554126), (280, 277063)]