78631875

素因数分解:

$3^2\times 5^4\times 7^1\times {\mathrm{1997}}^1$

素因数の和:2030

約数の個数: 60

約数和(自身を含む): 162285552

約数和(自身を除く): 83653677

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 625, 875, 1125, 1575, 1875, 1997, 2625, 4375, 5625, 5991, 7875, 9985, 13125, 13979, 17973, 29955, 39375, 41937, 49925, 69895, 89865, 125811, 149775, 209685, 249625, 349475, 449325, 629055, 748875, 1048425, 1248125, 1747375, 2246625, 3145275, 3744375, 5242125, 8736875, 11233125, 15726375, 26210625, 78631875]

約数ペア:

[(1, 78631875), (3, 26210625), (5, 15726375), (7, 11233125), (9, 8736875), (15, 5242125), (21, 3744375), (25, 3145275), (35, 2246625), (45, 1747375), (63, 1248125), (75, 1048425), (105, 748875), (125, 629055), (175, 449325), (225, 349475), (315, 249625), (375, 209685), (525, 149775), (625, 125811), (875, 89865), (1125, 69895), (1575, 49925), (1875, 41937), (1997, 39375), (2625, 29955), (4375, 17973), (5625, 13979), (5991, 13125), (7875, 9985)]