9939440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17749}}^1$

素因数の和:17769

約数の個数: 40

約数和(自身を含む): 26412000

約数和(自身を除く): 16472560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 17749, 35498, 70996, 88745, 124243, 141992, 177490, 248486, 283984, 354980, 496972, 621215, 709960, 993944, 1242430, 1419920, 1987888, 2484860, 4969720, 9939440]

約数ペア:

[(1, 9939440), (2, 4969720), (4, 2484860), (5, 1987888), (7, 1419920), (8, 1242430), (10, 993944), (14, 709960), (16, 621215), (20, 496972), (28, 354980), (35, 283984), (40, 248486), (56, 177490), (70, 141992), (80, 124243), (112, 88745), (140, 70996), (280, 35498), (560, 17749)]