180538480

素因数分解:

$2^4\times 5^1\times {\mathrm{2256731}}^1$

素因数の和:2256744

約数の個数: 20

約数和(自身を含む): 419752152

約数和(自身を除く): 239213672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2256731, 4513462, 9026924, 11283655, 18053848, 22567310, 36107696, 45134620, 90269240, 180538480]

約数ペア:

[(1, 180538480), (2, 90269240), (4, 45134620), (5, 36107696), (8, 22567310), (10, 18053848), (16, 11283655), (20, 9026924), (40, 4513462), (80, 2256731)]