20397545

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{829}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 30278400

約数和(自身を除く): 9880855

約数列:

[1, 5, 7, 19, 35, 37, 95, 133, 185, 259, 665, 703, 829, 1295, 3515, 4145, 4921, 5803, 15751, 24605, 29015, 30673, 78755, 110257, 153365, 214711, 551285, 582787, 1073555, 2913935, 4079509, 20397545]

約数ペア:

[(1, 20397545), (5, 4079509), (7, 2913935), (19, 1073555), (35, 582787), (37, 551285), (95, 214711), (133, 153365), (185, 110257), (259, 78755), (665, 30673), (703, 29015), (829, 24605), (1295, 15751), (3515, 5803), (4145, 4921)]