20905680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87107}}^1$

素因数の和:87123

約数の個数: 40

約数和(自身を含む): 64808352

約数和(自身を除く): 43902672

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87107, 174214, 261321, 348428, 435535, 522642, 696856, 871070, 1045284, 1306605, 1393712, 1742140, 2090568, 2613210, 3484280, 4181136, 5226420, 6968560, 10452840, 20905680]

約数ペア:

[(1, 20905680), (2, 10452840), (3, 6968560), (4, 5226420), (5, 4181136), (6, 3484280), (8, 2613210), (10, 2090568), (12, 1742140), (15, 1393712), (16, 1306605), (20, 1045284), (24, 871070), (30, 696856), (40, 522642), (48, 435535), (60, 348428), (80, 261321), (120, 174214), (240, 87107)]