4405640

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1327}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 10039680

約数和(自身を除く): 5634040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1327, 1660, 2654, 3320, 5308, 6635, 10616, 13270, 26540, 53080, 110141, 220282, 440564, 550705, 881128, 1101410, 2202820, 4405640]

約数ペア:

[(1, 4405640), (2, 2202820), (4, 1101410), (5, 881128), (8, 550705), (10, 440564), (20, 220282), (40, 110141), (83, 53080), (166, 26540), (332, 13270), (415, 10616), (664, 6635), (830, 5308), (1327, 3320), (1660, 2654)]