81867500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1$

素因数の和:277

約数の個数: 120

約数和(自身を含む): 211244880

約数和(自身を除く): 129377380

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 125, 130, 143, 220, 229, 250, 260, 275, 286, 325, 458, 500, 550, 572, 625, 650, 715, 916, 1100, 1145, 1250, 1300, 1375, 1430, 1625, 2290, 2500, 2519, 2750, 2860, 2977, 3250, 3575, 4580, 5038, 5500, 5725, 5954, 6500, 6875, 7150, 8125, 10076, 11450, 11908, 12595, 13750, 14300, 14885, 16250, 17875, 22900, 25190, 27500, 28625, 29770, 32500, 32747, 35750, 50380, 57250, 59540, 62975, 65494, 71500, 74425, 89375, 114500, 125950, 130988, 143125, 148850, 163735, 178750, 251900, 286250, 297700, 314875, 327470, 357500, 372125, 572500, 629750, 654940, 744250, 818675, 1259500, 1488500, 1574375, 1637350, 1860625, 3148750, 3274700, 3721250, 4093375, 6297500, 7442500, 8186750, 16373500, 20466875, 40933750, 81867500]

約数ペア:

[(1, 81867500), (2, 40933750), (4, 20466875), (5, 16373500), (10, 8186750), (11, 7442500), (13, 6297500), (20, 4093375), (22, 3721250), (25, 3274700), (26, 3148750), (44, 1860625), (50, 1637350), (52, 1574375), (55, 1488500), (65, 1259500), (100, 818675), (110, 744250), (125, 654940), (130, 629750), (143, 572500), (220, 372125), (229, 357500), (250, 327470), (260, 314875), (275, 297700), (286, 286250), (325, 251900), (458, 178750), (500, 163735), (550, 148850), (572, 143125), (625, 130988), (650, 125950), (715, 114500), (916, 89375), (1100, 74425), (1145, 71500), (1250, 65494), (1300, 62975), (1375, 59540), (1430, 57250), (1625, 50380), (2290, 35750), (2500, 32747), (2519, 32500), (2750, 29770), (2860, 28625), (2977, 27500), (3250, 25190), (3575, 22900), (4580, 17875), (5038, 16250), (5500, 14885), (5725, 14300), (5954, 13750), (6500, 12595), (6875, 11908), (7150, 11450), (8125, 10076)]