28000880

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4217}}^1$

素因数の和:4313

約数の個数: 40

約数和(自身を含む): 65902032

約数和(自身を除く): 37901152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 4217, 6640, 8434, 16868, 21085, 33736, 42170, 67472, 84340, 168680, 337360, 350011, 700022, 1400044, 1750055, 2800088, 3500110, 5600176, 7000220, 14000440, 28000880]

約数ペア:

[(1, 28000880), (2, 14000440), (4, 7000220), (5, 5600176), (8, 3500110), (10, 2800088), (16, 1750055), (20, 1400044), (40, 700022), (80, 350011), (83, 337360), (166, 168680), (332, 84340), (415, 67472), (664, 42170), (830, 33736), (1328, 21085), (1660, 16868), (3320, 8434), (4217, 6640)]