20278432

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 41489280

約数和(自身を除く): 21210848

約数列:

[1, 2, 4, 8, 16, 32, 47, 94, 97, 139, 188, 194, 278, 376, 388, 556, 752, 776, 1112, 1504, 1552, 2224, 3104, 4448, 4559, 6533, 9118, 13066, 13483, 18236, 26132, 26966, 36472, 52264, 53932, 72944, 104528, 107864, 145888, 209056, 215728, 431456, 633701, 1267402, 2534804, 5069608, 10139216, 20278432]

約数ペア:

[(1, 20278432), (2, 10139216), (4, 5069608), (8, 2534804), (16, 1267402), (32, 633701), (47, 431456), (94, 215728), (97, 209056), (139, 145888), (188, 107864), (194, 104528), (278, 72944), (376, 53932), (388, 52264), (556, 36472), (752, 26966), (776, 26132), (1112, 18236), (1504, 13483), (1552, 13066), (2224, 9118), (3104, 6533), (4448, 4559)]