8921000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{811}}^1$

素因数の和:843

約数の個数: 64

約数和(自身を含む): 22800960

約数和(自身を除く): 13879960

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, 811, 1000, 1100, 1375, 1622, 2200, 2750, 3244, 4055, 5500, 6488, 8110, 8921, 11000, 16220, 17842, 20275, 32440, 35684, 40550, 44605, 71368, 81100, 89210, 101375, 162200, 178420, 202750, 223025, 356840, 405500, 446050, 811000, 892100, 1115125, 1784200, 2230250, 4460500, 8921000]

約数ペア:

[(1, 8921000), (2, 4460500), (4, 2230250), (5, 1784200), (8, 1115125), (10, 892100), (11, 811000), (20, 446050), (22, 405500), (25, 356840), (40, 223025), (44, 202750), (50, 178420), (55, 162200), (88, 101375), (100, 89210), (110, 81100), (125, 71368), (200, 44605), (220, 40550), (250, 35684), (275, 32440), (440, 20275), (500, 17842), (550, 16220), (811, 11000), (1000, 8921), (1100, 8110), (1375, 6488), (1622, 5500), (2200, 4055), (2750, 3244)]