80641000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7331}}^1$

素因数の和:7363

約数の個数: 64

約数和(自身を含む): 205882560

約数和(自身を除く): 125241560

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, 1000, 1100, 1375, 2200, 2750, 5500, 7331, 11000, 14662, 29324, 36655, 58648, 73310, 80641, 146620, 161282, 183275, 293240, 322564, 366550, 403205, 645128, 733100, 806410, 916375, 1466200, 1612820, 1832750, 2016025, 3225640, 3665500, 4032050, 7331000, 8064100, 10080125, 16128200, 20160250, 40320500, 80641000]

約数ペア:

[(1, 80641000), (2, 40320500), (4, 20160250), (5, 16128200), (8, 10080125), (10, 8064100), (11, 7331000), (20, 4032050), (22, 3665500), (25, 3225640), (40, 2016025), (44, 1832750), (50, 1612820), (55, 1466200), (88, 916375), (100, 806410), (110, 733100), (125, 645128), (200, 403205), (220, 366550), (250, 322564), (275, 293240), (440, 183275), (500, 161282), (550, 146620), (1000, 80641), (1100, 73310), (1375, 58648), (2200, 36655), (2750, 29324), (5500, 14662), (7331, 11000)]