81175000

素因数分解:

$2^3\times 5^5\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 202487040

約数和(自身を除く): 121312040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 191, 200, 250, 340, 382, 425, 500, 625, 680, 764, 850, 955, 1000, 1250, 1528, 1700, 1910, 2125, 2500, 3125, 3247, 3400, 3820, 4250, 4775, 5000, 6250, 6494, 7640, 8500, 9550, 10625, 12500, 12988, 16235, 17000, 19100, 21250, 23875, 25000, 25976, 32470, 38200, 42500, 47750, 53125, 64940, 81175, 85000, 95500, 106250, 119375, 129880, 162350, 191000, 212500, 238750, 324700, 405875, 425000, 477500, 596875, 649400, 811750, 955000, 1193750, 1623500, 2029375, 2387500, 3247000, 4058750, 4775000, 8117500, 10146875, 16235000, 20293750, 40587500, 81175000]

約数ペア:

[(1, 81175000), (2, 40587500), (4, 20293750), (5, 16235000), (8, 10146875), (10, 8117500), (17, 4775000), (20, 4058750), (25, 3247000), (34, 2387500), (40, 2029375), (50, 1623500), (68, 1193750), (85, 955000), (100, 811750), (125, 649400), (136, 596875), (170, 477500), (191, 425000), (200, 405875), (250, 324700), (340, 238750), (382, 212500), (425, 191000), (500, 162350), (625, 129880), (680, 119375), (764, 106250), (850, 95500), (955, 85000), (1000, 81175), (1250, 64940), (1528, 53125), (1700, 47750), (1910, 42500), (2125, 38200), (2500, 32470), (3125, 25976), (3247, 25000), (3400, 23875), (3820, 21250), (4250, 19100), (4775, 17000), (5000, 16235), (6250, 12988), (6494, 12500), (7640, 10625), (8500, 9550)]