20497264

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{281}}^1$

素因数の和:433

約数の個数: 40

約数和(自身を含む): 41122368

約数和(自身を除く): 20625104

約数列:

[1, 2, 4, 8, 16, 47, 94, 97, 188, 194, 281, 376, 388, 562, 752, 776, 1124, 1552, 2248, 4496, 4559, 9118, 13207, 18236, 26414, 27257, 36472, 52828, 54514, 72944, 105656, 109028, 211312, 218056, 436112, 1281079, 2562158, 5124316, 10248632, 20497264]

約数ペア:

[(1, 20497264), (2, 10248632), (4, 5124316), (8, 2562158), (16, 1281079), (47, 436112), (94, 218056), (97, 211312), (188, 109028), (194, 105656), (281, 72944), (376, 54514), (388, 52828), (562, 36472), (752, 27257), (776, 26414), (1124, 18236), (1552, 13207), (2248, 9118), (4496, 4559)]