64974320

素因数分解:

$2^4\times 5^1\times {\mathrm{812179}}^1$

素因数の和:812192

約数の個数: 20

約数和(自身を含む): 151065480

約数和(自身を除く): 86091160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 812179, 1624358, 3248716, 4060895, 6497432, 8121790, 12994864, 16243580, 32487160, 64974320]

約数ペア:

[(1, 64974320), (2, 32487160), (4, 16243580), (5, 12994864), (8, 8121790), (10, 6497432), (16, 4060895), (20, 3248716), (40, 1624358), (80, 812179)]