28459520

素因数分解:

$2^9\times 5^1\times {\mathrm{11117}}^1$

素因数の和:11140

約数の個数: 40

約数和(自身を含む): 68242284

約数和(自身を除く): 39782764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 11117, 22234, 44468, 55585, 88936, 111170, 177872, 222340, 355744, 444680, 711488, 889360, 1422976, 1778720, 2845952, 3557440, 5691904, 7114880, 14229760, 28459520]

約数ペア:

[(1, 28459520), (2, 14229760), (4, 7114880), (5, 5691904), (8, 3557440), (10, 2845952), (16, 1778720), (20, 1422976), (32, 889360), (40, 711488), (64, 444680), (80, 355744), (128, 222340), (160, 177872), (256, 111170), (320, 88936), (512, 55585), (640, 44468), (1280, 22234), (2560, 11117)]