19138480

素因数分解:

$2^4\times 5^1\times {\mathrm{239231}}^1$

素因数の和:239244

約数の個数: 20

約数和(自身を含む): 44497152

約数和(自身を除く): 25358672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239231, 478462, 956924, 1196155, 1913848, 2392310, 3827696, 4784620, 9569240, 19138480]

約数ペア:

[(1, 19138480), (2, 9569240), (4, 4784620), (5, 3827696), (8, 2392310), (10, 1913848), (16, 1196155), (20, 956924), (40, 478462), (80, 239231)]