28334020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9907}}^1$

素因数の和:9940

約数の個数: 48

約数和(自身を含む): 69910848

約数和(自身を除く): 41576828

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 9907, 19814, 39628, 49535, 99070, 108977, 128791, 198140, 217954, 257582, 435908, 515164, 544885, 643955, 1089770, 1287910, 1416701, 2179540, 2575820, 2833402, 5666804, 7083505, 14167010, 28334020]

約数ペア:

[(1, 28334020), (2, 14167010), (4, 7083505), (5, 5666804), (10, 2833402), (11, 2575820), (13, 2179540), (20, 1416701), (22, 1287910), (26, 1089770), (44, 643955), (52, 544885), (55, 515164), (65, 435908), (110, 257582), (130, 217954), (143, 198140), (220, 128791), (260, 108977), (286, 99070), (572, 49535), (715, 39628), (1430, 19814), (2860, 9907)]