20484400

素因数分解:

$2^4\times 5^2\times {\mathrm{83}}^1\times {\mathrm{617}}^1$

素因数の和:718

約数の個数: 60

約数和(自身を含む): 49887432

約数和(自身を除く): 29403032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 83, 100, 166, 200, 332, 400, 415, 617, 664, 830, 1234, 1328, 1660, 2075, 2468, 3085, 3320, 4150, 4936, 6170, 6640, 8300, 9872, 12340, 15425, 16600, 24680, 30850, 33200, 49360, 51211, 61700, 102422, 123400, 204844, 246800, 256055, 409688, 512110, 819376, 1024220, 1280275, 2048440, 2560550, 4096880, 5121100, 10242200, 20484400]

約数ペア:

[(1, 20484400), (2, 10242200), (4, 5121100), (5, 4096880), (8, 2560550), (10, 2048440), (16, 1280275), (20, 1024220), (25, 819376), (40, 512110), (50, 409688), (80, 256055), (83, 246800), (100, 204844), (166, 123400), (200, 102422), (332, 61700), (400, 51211), (415, 49360), (617, 33200), (664, 30850), (830, 24680), (1234, 16600), (1328, 15425), (1660, 12340), (2075, 9872), (2468, 8300), (3085, 6640), (3320, 6170), (4150, 4936)]