218909545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 288288000

約数和(自身を除く): 69378455

約数列:

[1, 5, 19, 29, 95, 145, 181, 439, 551, 905, 2195, 2755, 3439, 5249, 8341, 12731, 17195, 26245, 41705, 63655, 79459, 99731, 241889, 397295, 498655, 1209445, 1509721, 2304311, 7548605, 11521555, 43781909, 218909545]

約数ペア:

[(1, 218909545), (5, 43781909), (19, 11521555), (29, 7548605), (95, 2304311), (145, 1509721), (181, 1209445), (439, 498655), (551, 397295), (905, 241889), (2195, 99731), (2755, 79459), (3439, 63655), (5249, 41705), (8341, 26245), (12731, 17195)]