20140720

素因数分解:

$2^4\times 5^1\times {\mathrm{271}}^1\times {\mathrm{929}}^1$

素因数の和:1213

約数の個数: 40

約数和(自身を含む): 47050560

約数和(自身を除く): 26909840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271, 542, 929, 1084, 1355, 1858, 2168, 2710, 3716, 4336, 4645, 5420, 7432, 9290, 10840, 14864, 18580, 21680, 37160, 74320, 251759, 503518, 1007036, 1258795, 2014072, 2517590, 4028144, 5035180, 10070360, 20140720]

約数ペア:

[(1, 20140720), (2, 10070360), (4, 5035180), (5, 4028144), (8, 2517590), (10, 2014072), (16, 1258795), (20, 1007036), (40, 503518), (80, 251759), (271, 74320), (542, 37160), (929, 21680), (1084, 18580), (1355, 14864), (1858, 10840), (2168, 9290), (2710, 7432), (3716, 5420), (4336, 4645)]