18031580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^2$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 45211488

約数和(自身を除く): 27179908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 59, 70, 74, 118, 140, 148, 185, 236, 259, 295, 370, 413, 518, 590, 740, 826, 1036, 1180, 1295, 1652, 2065, 2183, 2590, 3481, 4130, 4366, 5180, 6962, 8260, 8732, 10915, 13924, 15281, 17405, 21830, 24367, 30562, 34810, 43660, 48734, 61124, 69620, 76405, 97468, 121835, 128797, 152810, 243670, 257594, 305620, 487340, 515188, 643985, 901579, 1287970, 1803158, 2575940, 3606316, 4507895, 9015790, 18031580]

約数ペア:

[(1, 18031580), (2, 9015790), (4, 4507895), (5, 3606316), (7, 2575940), (10, 1803158), (14, 1287970), (20, 901579), (28, 643985), (35, 515188), (37, 487340), (59, 305620), (70, 257594), (74, 243670), (118, 152810), (140, 128797), (148, 121835), (185, 97468), (236, 76405), (259, 69620), (295, 61124), (370, 48734), (413, 43660), (518, 34810), (590, 30562), (740, 24367), (826, 21830), (1036, 17405), (1180, 15281), (1295, 13924), (1652, 10915), (2065, 8732), (2183, 8260), (2590, 6962), (3481, 5180), (4130, 4366)]