20402516

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{1987}}^1$

素因数の和:2159

約数の個数: 24

約数和(自身を含む): 38074176

約数和(自身を除く): 17671660

約数列:

[1, 2, 4, 17, 34, 68, 151, 302, 604, 1987, 2567, 3974, 5134, 7948, 10268, 33779, 67558, 135116, 300037, 600074, 1200148, 5100629, 10201258, 20402516]

約数ペア:

[(1, 20402516), (2, 10201258), (4, 5100629), (17, 1200148), (34, 600074), (68, 300037), (151, 135116), (302, 67558), (604, 33779), (1987, 10268), (2567, 7948), (3974, 5134)]