400660960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{357733}}^1$

素因数の和:357755

約数の個数: 48

約数和(自身を含む): 1081787616

約数和(自身を除く): 681126656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 357733, 715466, 1430932, 1788665, 2504131, 2861864, 3577330, 5008262, 5723728, 7154660, 10016524, 11447456, 12520655, 14309320, 20033048, 25041310, 28618640, 40066096, 50082620, 57237280, 80132192, 100165240, 200330480, 400660960]

約数ペア:

[(1, 400660960), (2, 200330480), (4, 100165240), (5, 80132192), (7, 57237280), (8, 50082620), (10, 40066096), (14, 28618640), (16, 25041310), (20, 20033048), (28, 14309320), (32, 12520655), (35, 11447456), (40, 10016524), (56, 7154660), (70, 5723728), (80, 5008262), (112, 3577330), (140, 2861864), (160, 2504131), (224, 1788665), (280, 1430932), (560, 715466), (1120, 357733)]