78403984

素因数分解:

$2^4\times {\mathrm{227}}^1\times {\mathrm{21587}}^1$

素因数の和:21822

約数の個数: 20

約数和(自身を含む): 152583984

約数和(自身を除く): 74180000

約数列:

[1, 2, 4, 8, 16, 227, 454, 908, 1816, 3632, 21587, 43174, 86348, 172696, 345392, 4900249, 9800498, 19600996, 39201992, 78403984]

約数ペア:

[(1, 78403984), (2, 39201992), (4, 19600996), (8, 9800498), (16, 4900249), (227, 345392), (454, 172696), (908, 86348), (1816, 43174), (3632, 21587)]