15312255

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 28957824

約数和(自身を除く): 13645569

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 83, 105, 147, 245, 249, 251, 415, 581, 735, 753, 1245, 1255, 1743, 1757, 2905, 3765, 4067, 5271, 8715, 8785, 12201, 12299, 20335, 20833, 26355, 36897, 61005, 61495, 62499, 104165, 145831, 184485, 312495, 437493, 729155, 1020817, 2187465, 3062451, 5104085, 15312255]

約数ペア:

[(1, 15312255), (3, 5104085), (5, 3062451), (7, 2187465), (15, 1020817), (21, 729155), (35, 437493), (49, 312495), (83, 184485), (105, 145831), (147, 104165), (245, 62499), (249, 61495), (251, 61005), (415, 36897), (581, 26355), (735, 20833), (753, 20335), (1245, 12299), (1255, 12201), (1743, 8785), (1757, 8715), (2905, 5271), (3765, 4067)]