51816320

素因数分解:

$2^7\times 5^1\times {\mathrm{80963}}^1$

素因数の和:80982

約数の個数: 32

約数和(自身を含む): 123874920

約数和(自身を除く): 72058600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 80963, 161926, 323852, 404815, 647704, 809630, 1295408, 1619260, 2590816, 3238520, 5181632, 6477040, 10363264, 12954080, 25908160, 51816320]

約数ペア:

[(1, 51816320), (2, 25908160), (4, 12954080), (5, 10363264), (8, 6477040), (10, 5181632), (16, 3238520), (20, 2590816), (32, 1619260), (40, 1295408), (64, 809630), (80, 647704), (128, 404815), (160, 323852), (320, 161926), (640, 80963)]