20307280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36263}}^1$

素因数の和:36283

約数の個数: 40

約数和(自身を含む): 53960832

約数和(自身を除く): 33653552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36263, 72526, 145052, 181315, 253841, 290104, 362630, 507682, 580208, 725260, 1015364, 1269205, 1450520, 2030728, 2538410, 2901040, 4061456, 5076820, 10153640, 20307280]

約数ペア:

[(1, 20307280), (2, 10153640), (4, 5076820), (5, 4061456), (7, 2901040), (8, 2538410), (10, 2030728), (14, 1450520), (16, 1269205), (20, 1015364), (28, 725260), (35, 580208), (40, 507682), (56, 362630), (70, 290104), (80, 253841), (112, 181315), (140, 145052), (280, 72526), (560, 36263)]