15940015

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:739

約数の個数: 32

約数和(自身を含む): 24022656

約数和(自身を除く): 8082641

約数列:

[1, 5, 7, 13, 35, 53, 65, 91, 265, 371, 455, 661, 689, 1855, 3305, 3445, 4627, 4823, 8593, 23135, 24115, 35033, 42965, 60151, 175165, 245231, 300755, 455429, 1226155, 2277145, 3188003, 15940015]

約数ペア:

[(1, 15940015), (5, 3188003), (7, 2277145), (13, 1226155), (35, 455429), (53, 300755), (65, 245231), (91, 175165), (265, 60151), (371, 42965), (455, 35033), (661, 24115), (689, 23135), (1855, 8593), (3305, 4823), (3445, 4627)]