18752020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7879}}^1$

素因数の和:7912

約数の個数: 48

約数和(自身を含む): 47658240

約数和(自身を除く): 28906220

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 7879, 15758, 31516, 39395, 55153, 78790, 110306, 133943, 157580, 220612, 267886, 275765, 535772, 551530, 669715, 937601, 1103060, 1339430, 1875202, 2678860, 3750404, 4688005, 9376010, 18752020]

約数ペア:

[(1, 18752020), (2, 9376010), (4, 4688005), (5, 3750404), (7, 2678860), (10, 1875202), (14, 1339430), (17, 1103060), (20, 937601), (28, 669715), (34, 551530), (35, 535772), (68, 275765), (70, 267886), (85, 220612), (119, 157580), (140, 133943), (170, 110306), (238, 78790), (340, 55153), (476, 39395), (595, 31516), (1190, 15758), (2380, 7879)]