87678640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{22367}}^1$

素因数の和:22394

約数の個数: 60

約数和(自身を含む): 237145536

約数和(自身を除く): 149466896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 22367, 44734, 89468, 111835, 156569, 178936, 223670, 313138, 357872, 447340, 626276, 782845, 894680, 1095983, 1252552, 1565690, 1789360, 2191966, 2505104, 3131380, 4383932, 5479915, 6262760, 8767864, 10959830, 12525520, 17535728, 21919660, 43839320, 87678640]

約数ペア:

[(1, 87678640), (2, 43839320), (4, 21919660), (5, 17535728), (7, 12525520), (8, 10959830), (10, 8767864), (14, 6262760), (16, 5479915), (20, 4383932), (28, 3131380), (35, 2505104), (40, 2191966), (49, 1789360), (56, 1565690), (70, 1252552), (80, 1095983), (98, 894680), (112, 782845), (140, 626276), (196, 447340), (245, 357872), (280, 313138), (392, 223670), (490, 178936), (560, 156569), (784, 111835), (980, 89468), (1960, 44734), (3920, 22367)]