20291984

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:423

約数の個数: 40

約数和(自身を含む): 40824768

約数和(自身を除く): 20532784

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 151, 227, 296, 302, 454, 592, 604, 908, 1208, 1816, 2416, 3632, 5587, 8399, 11174, 16798, 22348, 33596, 34277, 44696, 67192, 68554, 89392, 134384, 137108, 274216, 548432, 1268249, 2536498, 5072996, 10145992, 20291984]

約数ペア:

[(1, 20291984), (2, 10145992), (4, 5072996), (8, 2536498), (16, 1268249), (37, 548432), (74, 274216), (148, 137108), (151, 134384), (227, 89392), (296, 68554), (302, 67192), (454, 44696), (592, 34277), (604, 33596), (908, 22348), (1208, 16798), (1816, 11174), (2416, 8399), (3632, 5587)]