19227975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 36216432

約数和(自身を除く): 16988457

約数列:

[1, 3, 5, 13, 15, 25, 37, 39, 41, 65, 75, 111, 123, 169, 185, 195, 205, 325, 481, 507, 533, 555, 615, 845, 925, 975, 1025, 1443, 1517, 1599, 2405, 2535, 2665, 2775, 3075, 4225, 4551, 6253, 6929, 7215, 7585, 7995, 12025, 12675, 13325, 18759, 19721, 20787, 22755, 31265, 34645, 36075, 37925, 39975, 59163, 93795, 98605, 103935, 113775, 156325, 173225, 256373, 295815, 468975, 493025, 519675, 769119, 1281865, 1479075, 3845595, 6409325, 19227975]

約数ペア:

[(1, 19227975), (3, 6409325), (5, 3845595), (13, 1479075), (15, 1281865), (25, 769119), (37, 519675), (39, 493025), (41, 468975), (65, 295815), (75, 256373), (111, 173225), (123, 156325), (169, 113775), (185, 103935), (195, 98605), (205, 93795), (325, 59163), (481, 39975), (507, 37925), (533, 36075), (555, 34645), (615, 31265), (845, 22755), (925, 20787), (975, 19721), (1025, 18759), (1443, 13325), (1517, 12675), (1599, 12025), (2405, 7995), (2535, 7585), (2665, 7215), (2775, 6929), (3075, 6253), (4225, 4551)]