90887500

素因数分解:

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

素因数の和:701

約数の個数: 72

約数和(自身を含む): 217204848

約数和(自身を除く): 126317348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 625, 661, 1100, 1250, 1322, 1375, 2500, 2644, 2750, 3125, 3305, 5500, 6250, 6610, 6875, 7271, 12500, 13220, 13750, 14542, 16525, 27500, 29084, 33050, 34375, 36355, 66100, 68750, 72710, 82625, 137500, 145420, 165250, 181775, 330500, 363550, 413125, 727100, 826250, 908875, 1652500, 1817750, 2065625, 3635500, 4131250, 4544375, 8262500, 9088750, 18177500, 22721875, 45443750, 90887500]

約数ペア:

[(1, 90887500), (2, 45443750), (4, 22721875), (5, 18177500), (10, 9088750), (11, 8262500), (20, 4544375), (22, 4131250), (25, 3635500), (44, 2065625), (50, 1817750), (55, 1652500), (100, 908875), (110, 826250), (125, 727100), (220, 413125), (250, 363550), (275, 330500), (500, 181775), (550, 165250), (625, 145420), (661, 137500), (1100, 82625), (1250, 72710), (1322, 68750), (1375, 66100), (2500, 36355), (2644, 34375), (2750, 33050), (3125, 29084), (3305, 27500), (5500, 16525), (6250, 14542), (6610, 13750), (6875, 13220), (7271, 12500)]