20517450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{3181}}^1$

素因数の和:3239

約数の個数: 48

約数和(自身を含む): 52082976

約数和(自身を除く): 31565526

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 43, 50, 75, 86, 129, 150, 215, 258, 430, 645, 1075, 1290, 2150, 3181, 3225, 6362, 6450, 9543, 15905, 19086, 31810, 47715, 79525, 95430, 136783, 159050, 238575, 273566, 410349, 477150, 683915, 820698, 1367830, 2051745, 3419575, 4103490, 6839150, 10258725, 20517450]

約数ペア:

[(1, 20517450), (2, 10258725), (3, 6839150), (5, 4103490), (6, 3419575), (10, 2051745), (15, 1367830), (25, 820698), (30, 683915), (43, 477150), (50, 410349), (75, 273566), (86, 238575), (129, 159050), (150, 136783), (215, 95430), (258, 79525), (430, 47715), (645, 31810), (1075, 19086), (1290, 15905), (2150, 9543), (3181, 6450), (3225, 6362)]