19993035

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 16294965

約数列:

[1, 3, 5, 15, 19, 29, 41, 57, 59, 87, 95, 123, 145, 177, 205, 285, 295, 435, 551, 615, 779, 885, 1121, 1189, 1653, 1711, 2337, 2419, 2755, 3363, 3567, 3895, 5133, 5605, 5945, 7257, 8265, 8555, 11685, 12095, 16815, 17835, 22591, 25665, 32509, 36285, 45961, 67773, 70151, 97527, 112955, 137883, 162545, 210453, 229805, 338865, 350755, 487635, 689415, 1052265, 1332869, 3998607, 6664345, 19993035]

約数ペア:

[(1, 19993035), (3, 6664345), (5, 3998607), (15, 1332869), (19, 1052265), (29, 689415), (41, 487635), (57, 350755), (59, 338865), (87, 229805), (95, 210453), (123, 162545), (145, 137883), (177, 112955), (205, 97527), (285, 70151), (295, 67773), (435, 45961), (551, 36285), (615, 32509), (779, 25665), (885, 22591), (1121, 17835), (1189, 16815), (1653, 12095), (1711, 11685), (2337, 8555), (2419, 8265), (2755, 7257), (3363, 5945), (3567, 5605), (3895, 5133)]