40881680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{10429}}^1$

素因数の和:10456

約数の個数: 60

約数和(自身を含む): 110578860

約数和(自身を除く): 69697180

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 10429, 20858, 41716, 52145, 73003, 83432, 104290, 146006, 166864, 208580, 292012, 365015, 417160, 511021, 584024, 730030, 834320, 1022042, 1168048, 1460060, 2044084, 2555105, 2920120, 4088168, 5110210, 5840240, 8176336, 10220420, 20440840, 40881680]

約数ペア:

[(1, 40881680), (2, 20440840), (4, 10220420), (5, 8176336), (7, 5840240), (8, 5110210), (10, 4088168), (14, 2920120), (16, 2555105), (20, 2044084), (28, 1460060), (35, 1168048), (40, 1022042), (49, 834320), (56, 730030), (70, 584024), (80, 511021), (98, 417160), (112, 365015), (140, 292012), (196, 208580), (245, 166864), (280, 146006), (392, 104290), (490, 83432), (560, 73003), (784, 52145), (980, 41716), (1960, 20858), (3920, 10429)]