123947000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:378

約数の個数: 128

約数和(自身を含む): 321459840

約数和(自身を除く): 197512840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 25, 34, 40, 46, 50, 68, 85, 92, 100, 115, 125, 136, 170, 184, 200, 230, 250, 317, 340, 391, 425, 460, 500, 575, 634, 680, 782, 850, 920, 1000, 1150, 1268, 1564, 1585, 1700, 1955, 2125, 2300, 2536, 2875, 3128, 3170, 3400, 3910, 4250, 4600, 5389, 5750, 6340, 7291, 7820, 7925, 8500, 9775, 10778, 11500, 12680, 14582, 15640, 15850, 17000, 19550, 21556, 23000, 26945, 29164, 31700, 36455, 39100, 39625, 43112, 48875, 53890, 58328, 63400, 72910, 78200, 79250, 97750, 107780, 123947, 134725, 145820, 158500, 182275, 195500, 215560, 247894, 269450, 291640, 317000, 364550, 391000, 495788, 538900, 619735, 673625, 729100, 911375, 991576, 1077800, 1239470, 1347250, 1458200, 1822750, 2478940, 2694500, 3098675, 3645500, 4957880, 5389000, 6197350, 7291000, 12394700, 15493375, 24789400, 30986750, 61973500, 123947000]

約数ペア:

[(1, 123947000), (2, 61973500), (4, 30986750), (5, 24789400), (8, 15493375), (10, 12394700), (17, 7291000), (20, 6197350), (23, 5389000), (25, 4957880), (34, 3645500), (40, 3098675), (46, 2694500), (50, 2478940), (68, 1822750), (85, 1458200), (92, 1347250), (100, 1239470), (115, 1077800), (125, 991576), (136, 911375), (170, 729100), (184, 673625), (200, 619735), (230, 538900), (250, 495788), (317, 391000), (340, 364550), (391, 317000), (425, 291640), (460, 269450), (500, 247894), (575, 215560), (634, 195500), (680, 182275), (782, 158500), (850, 145820), (920, 134725), (1000, 123947), (1150, 107780), (1268, 97750), (1564, 79250), (1585, 78200), (1700, 72910), (1955, 63400), (2125, 58328), (2300, 53890), (2536, 48875), (2875, 43112), (3128, 39625), (3170, 39100), (3400, 36455), (3910, 31700), (4250, 29164), (4600, 26945), (5389, 23000), (5750, 21556), (6340, 19550), (7291, 17000), (7820, 15850), (7925, 15640), (8500, 14582), (9775, 12680), (10778, 11500)]