39851945

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 59097600

約数和(自身を除く): 19245655

約数列:

[1, 5, 7, 29, 35, 49, 71, 79, 145, 203, 245, 355, 395, 497, 553, 1015, 1421, 2059, 2291, 2485, 2765, 3479, 3871, 5609, 7105, 10295, 11455, 14413, 16037, 17395, 19355, 28045, 39263, 72065, 80185, 100891, 112259, 162661, 196315, 274841, 504455, 561295, 813305, 1138627, 1374205, 5693135, 7970389, 39851945]

約数ペア:

[(1, 39851945), (5, 7970389), (7, 5693135), (29, 1374205), (35, 1138627), (49, 813305), (71, 561295), (79, 504455), (145, 274841), (203, 196315), (245, 162661), (355, 112259), (395, 100891), (497, 80185), (553, 72065), (1015, 39263), (1421, 28045), (2059, 19355), (2291, 17395), (2485, 16037), (2765, 14413), (3479, 11455), (3871, 10295), (5609, 7105)]