17857180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 42364224

約数和(自身を除く): 24507044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 121, 157, 188, 220, 235, 242, 314, 470, 484, 517, 605, 628, 785, 940, 1034, 1210, 1570, 1727, 2068, 2420, 2585, 3140, 3454, 5170, 5687, 6908, 7379, 8635, 10340, 11374, 14758, 17270, 18997, 22748, 28435, 29516, 34540, 36895, 37994, 56870, 73790, 75988, 81169, 94985, 113740, 147580, 162338, 189970, 324676, 379940, 405845, 811690, 892859, 1623380, 1785718, 3571436, 4464295, 8928590, 17857180]

約数ペア:

[(1, 17857180), (2, 8928590), (4, 4464295), (5, 3571436), (10, 1785718), (11, 1623380), (20, 892859), (22, 811690), (44, 405845), (47, 379940), (55, 324676), (94, 189970), (110, 162338), (121, 147580), (157, 113740), (188, 94985), (220, 81169), (235, 75988), (242, 73790), (314, 56870), (470, 37994), (484, 36895), (517, 34540), (605, 29516), (628, 28435), (785, 22748), (940, 18997), (1034, 17270), (1210, 14758), (1570, 11374), (1727, 10340), (2068, 8635), (2420, 7379), (2585, 6908), (3140, 5687), (3454, 5170)]