81895000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{1489}}^1$

素因数の和:1526

約数の個数: 80

約数和(自身を含む): 209464200

約数和(自身を除く): 127569200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 625, 1000, 1100, 1250, 1375, 1489, 2200, 2500, 2750, 2978, 5000, 5500, 5956, 6875, 7445, 11000, 11912, 13750, 14890, 16379, 27500, 29780, 32758, 37225, 55000, 59560, 65516, 74450, 81895, 131032, 148900, 163790, 186125, 297800, 327580, 372250, 409475, 655160, 744500, 818950, 930625, 1489000, 1637900, 1861250, 2047375, 3275800, 3722500, 4094750, 7445000, 8189500, 10236875, 16379000, 20473750, 40947500, 81895000]

約数ペア:

[(1, 81895000), (2, 40947500), (4, 20473750), (5, 16379000), (8, 10236875), (10, 8189500), (11, 7445000), (20, 4094750), (22, 3722500), (25, 3275800), (40, 2047375), (44, 1861250), (50, 1637900), (55, 1489000), (88, 930625), (100, 818950), (110, 744500), (125, 655160), (200, 409475), (220, 372250), (250, 327580), (275, 297800), (440, 186125), (500, 163790), (550, 148900), (625, 131032), (1000, 81895), (1100, 74450), (1250, 65516), (1375, 59560), (1489, 55000), (2200, 37225), (2500, 32758), (2750, 29780), (2978, 27500), (5000, 16379), (5500, 14890), (5956, 13750), (6875, 11912), (7445, 11000)]