77380520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{276359}}^1$

素因数の和:276377

約数の個数: 32

約数和(自身を含む): 198979200

約数和(自身を除く): 121598680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 276359, 552718, 1105436, 1381795, 1934513, 2210872, 2763590, 3869026, 5527180, 7738052, 9672565, 11054360, 15476104, 19345130, 38690260, 77380520]

約数ペア:

[(1, 77380520), (2, 38690260), (4, 19345130), (5, 15476104), (7, 11054360), (8, 9672565), (10, 7738052), (14, 5527180), (20, 3869026), (28, 2763590), (35, 2210872), (40, 1934513), (56, 1381795), (70, 1105436), (140, 552718), (280, 276359)]