51868160

素因数分解:

$2^9\times 5^1\times {\mathrm{20261}}^1$

素因数の和:20284

約数の個数: 40

約数和(自身を含む): 124368156

約数和(自身を除く): 72499996

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 20261, 40522, 81044, 101305, 162088, 202610, 324176, 405220, 648352, 810440, 1296704, 1620880, 2593408, 3241760, 5186816, 6483520, 10373632, 12967040, 25934080, 51868160]

約数ペア:

[(1, 51868160), (2, 25934080), (4, 12967040), (5, 10373632), (8, 6483520), (10, 5186816), (16, 3241760), (20, 2593408), (32, 1620880), (40, 1296704), (64, 810440), (80, 648352), (128, 405220), (160, 324176), (256, 202610), (320, 162088), (512, 101305), (640, 81044), (1280, 40522), (2560, 20261)]