1640450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 3600960

約数和(自身を除く): 1960510

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 43, 50, 70, 86, 109, 175, 215, 218, 301, 350, 430, 545, 602, 763, 1075, 1090, 1505, 1526, 2150, 2725, 3010, 3815, 4687, 5450, 7525, 7630, 9374, 15050, 19075, 23435, 32809, 38150, 46870, 65618, 117175, 164045, 234350, 328090, 820225, 1640450]

約数ペア:

[(1, 1640450), (2, 820225), (5, 328090), (7, 234350), (10, 164045), (14, 117175), (25, 65618), (35, 46870), (43, 38150), (50, 32809), (70, 23435), (86, 19075), (109, 15050), (175, 9374), (215, 7630), (218, 7525), (301, 5450), (350, 4687), (430, 3815), (545, 3010), (602, 2725), (763, 2150), (1075, 1526), (1090, 1505)]