80043520

素因数分解:

$2^9\times 5^1\times {\mathrm{31267}}^1$

素因数の和:31290

約数の個数: 40

約数和(自身を含む): 191922984

約数和(自身を除く): 111879464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 31267, 62534, 125068, 156335, 250136, 312670, 500272, 625340, 1000544, 1250680, 2001088, 2501360, 4002176, 5002720, 8004352, 10005440, 16008704, 20010880, 40021760, 80043520]

約数ペア:

[(1, 80043520), (2, 40021760), (4, 20010880), (5, 16008704), (8, 10005440), (10, 8004352), (16, 5002720), (20, 4002176), (32, 2501360), (40, 2001088), (64, 1250680), (80, 1000544), (128, 625340), (160, 500272), (256, 312670), (320, 250136), (512, 156335), (640, 125068), (1280, 62534), (2560, 31267)]