400254948

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{79987}}^1$

素因数の和:80136

約数の個数: 36

約数和(自身を含む): 1019047120

約数和(自身を除く): 618792172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 5004, 79987, 159974, 239961, 319948, 479922, 719883, 959844, 1439766, 2879532, 11118193, 22236386, 33354579, 44472772, 66709158, 100063737, 133418316, 200127474, 400254948]

約数ペア:

[(1, 400254948), (2, 200127474), (3, 133418316), (4, 100063737), (6, 66709158), (9, 44472772), (12, 33354579), (18, 22236386), (36, 11118193), (139, 2879532), (278, 1439766), (417, 959844), (556, 719883), (834, 479922), (1251, 319948), (1668, 239961), (2502, 159974), (5004, 79987)]