7271000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{661}}^1$

素因数の和:693

約数の個数: 64

約数和(自身を含む): 18588960

約数和(自身を除く): 11317960

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, 661, 1000, 1100, 1322, 1375, 2200, 2644, 2750, 3305, 5288, 5500, 6610, 7271, 11000, 13220, 14542, 16525, 26440, 29084, 33050, 36355, 58168, 66100, 72710, 82625, 132200, 145420, 165250, 181775, 290840, 330500, 363550, 661000, 727100, 908875, 1454200, 1817750, 3635500, 7271000]

約数ペア:

[(1, 7271000), (2, 3635500), (4, 1817750), (5, 1454200), (8, 908875), (10, 727100), (11, 661000), (20, 363550), (22, 330500), (25, 290840), (40, 181775), (44, 165250), (50, 145420), (55, 132200), (88, 82625), (100, 72710), (110, 66100), (125, 58168), (200, 36355), (220, 33050), (250, 29084), (275, 26440), (440, 16525), (500, 14542), (550, 13220), (661, 11000), (1000, 7271), (1100, 6610), (1322, 5500), (1375, 5288), (2200, 3305), (2644, 2750)]