20948021265

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{16073}}^1$

素因数の和:16386

約数の個数: 64

約数和(自身を含む): 37497427200

約数和(自身を除く): 16549405935

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 269, 285, 323, 807, 969, 1345, 1615, 4035, 4573, 4845, 5111, 13719, 15333, 16073, 22865, 25555, 48219, 68595, 76665, 80365, 86887, 241095, 260661, 273241, 305387, 434435, 819723, 916161, 1303305, 1366205, 1526935, 4098615, 4323637, 4580805, 5191579, 12970911, 15574737, 21618185, 25957895, 64854555, 73501829, 77873685, 82149103, 220505487, 246447309, 367509145, 410745515, 1102527435, 1232236545, 1396534751, 4189604253, 6982673755, 20948021265]

約数ペア:

[(1, 20948021265), (3, 6982673755), (5, 4189604253), (15, 1396534751), (17, 1232236545), (19, 1102527435), (51, 410745515), (57, 367509145), (85, 246447309), (95, 220505487), (255, 82149103), (269, 77873685), (285, 73501829), (323, 64854555), (807, 25957895), (969, 21618185), (1345, 15574737), (1615, 12970911), (4035, 5191579), (4573, 4580805), (4845, 4323637), (5111, 4098615), (13719, 1526935), (15333, 1366205), (16073, 1303305), (22865, 916161), (25555, 819723), (48219, 434435), (68595, 305387), (76665, 273241), (80365, 260661), (86887, 241095)]