40489918

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{653}}^1$

素因数の和:808

約数の個数: 32

約数和(自身を含む): 71824896

約数和(自身を除く): 31334978

約数列:

[1, 2, 7, 14, 43, 86, 103, 206, 301, 602, 653, 721, 1306, 1442, 4429, 4571, 8858, 9142, 28079, 31003, 56158, 62006, 67259, 134518, 196553, 393106, 470813, 941626, 2892137, 5784274, 20244959, 40489918]

約数ペア:

[(1, 40489918), (2, 20244959), (7, 5784274), (14, 2892137), (43, 941626), (86, 470813), (103, 393106), (206, 196553), (301, 134518), (602, 67259), (653, 62006), (721, 56158), (1306, 31003), (1442, 28079), (4429, 9142), (4571, 8858)]