16879760

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{821}}^1$

素因数の和:1091

約数の個数: 40

約数和(自身を含む): 39446136

約数和(自身を除く): 22566376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 821, 1028, 1285, 1642, 2056, 2570, 3284, 4105, 4112, 5140, 6568, 8210, 10280, 13136, 16420, 20560, 32840, 65680, 210997, 421994, 843988, 1054985, 1687976, 2109970, 3375952, 4219940, 8439880, 16879760]

約数ペア:

[(1, 16879760), (2, 8439880), (4, 4219940), (5, 3375952), (8, 2109970), (10, 1687976), (16, 1054985), (20, 843988), (40, 421994), (80, 210997), (257, 65680), (514, 32840), (821, 20560), (1028, 16420), (1285, 13136), (1642, 10280), (2056, 8210), (2570, 6568), (3284, 5140), (4105, 4112)]