1289120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{1151}}^1$

素因数の和:1173

約数の個数: 48

約数和(自身を含む): 3483648

約数和(自身を除く): 2194528

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, 1151, 2302, 4604, 5755, 8057, 9208, 11510, 16114, 18416, 23020, 32228, 36832, 40285, 46040, 64456, 80570, 92080, 128912, 161140, 184160, 257824, 322280, 644560, 1289120]

約数ペア:

[(1, 1289120), (2, 644560), (4, 322280), (5, 257824), (7, 184160), (8, 161140), (10, 128912), (14, 92080), (16, 80570), (20, 64456), (28, 46040), (32, 40285), (35, 36832), (40, 32228), (56, 23020), (70, 18416), (80, 16114), (112, 11510), (140, 9208), (160, 8057), (224, 5755), (280, 4604), (560, 2302), (1120, 1151)]