1990598000

素因数分解:

$2^4\times 5^3\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:628

約数の個数: 160

約数和(自身を含む): 5147670528

約数和(自身を除く): 3157072528

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 125, 127, 136, 170, 200, 250, 254, 272, 340, 400, 425, 461, 500, 508, 635, 680, 850, 922, 1000, 1016, 1270, 1360, 1700, 1844, 2000, 2032, 2125, 2159, 2305, 2540, 3175, 3400, 3688, 4250, 4318, 4610, 5080, 6350, 6800, 7376, 7837, 8500, 8636, 9220, 10160, 10795, 11525, 12700, 15674, 15875, 17000, 17272, 18440, 21590, 23050, 25400, 31348, 31750, 34000, 34544, 36880, 39185, 43180, 46100, 50800, 53975, 57625, 58547, 62696, 63500, 78370, 86360, 92200, 107950, 115250, 117094, 125392, 127000, 156740, 172720, 184400, 195925, 215900, 230500, 234188, 254000, 269875, 292735, 313480, 391850, 431800, 461000, 468376, 539750, 585470, 626960, 783700, 863600, 922000, 936752, 979625, 995299, 1079500, 1170940, 1463675, 1567400, 1959250, 1990598, 2159000, 2341880, 2927350, 3134800, 3918500, 3981196, 4318000, 4683760, 4976495, 5854700, 7318375, 7837000, 7962392, 9952990, 11709400, 14636750, 15674000, 15924784, 19905980, 23418800, 24882475, 29273500, 39811960, 49764950, 58547000, 79623920, 99529900, 117094000, 124412375, 199059800, 248824750, 398119600, 497649500, 995299000, 1990598000]

約数ペア:

[(1, 1990598000), (2, 995299000), (4, 497649500), (5, 398119600), (8, 248824750), (10, 199059800), (16, 124412375), (17, 117094000), (20, 99529900), (25, 79623920), (34, 58547000), (40, 49764950), (50, 39811960), (68, 29273500), (80, 24882475), (85, 23418800), (100, 19905980), (125, 15924784), (127, 15674000), (136, 14636750), (170, 11709400), (200, 9952990), (250, 7962392), (254, 7837000), (272, 7318375), (340, 5854700), (400, 4976495), (425, 4683760), (461, 4318000), (500, 3981196), (508, 3918500), (635, 3134800), (680, 2927350), (850, 2341880), (922, 2159000), (1000, 1990598), (1016, 1959250), (1270, 1567400), (1360, 1463675), (1700, 1170940), (1844, 1079500), (2000, 995299), (2032, 979625), (2125, 936752), (2159, 922000), (2305, 863600), (2540, 783700), (3175, 626960), (3400, 585470), (3688, 539750), (4250, 468376), (4318, 461000), (4610, 431800), (5080, 391850), (6350, 313480), (6800, 292735), (7376, 269875), (7837, 254000), (8500, 234188), (8636, 230500), (9220, 215900), (10160, 195925), (10795, 184400), (11525, 172720), (12700, 156740), (15674, 127000), (15875, 125392), (17000, 117094), (17272, 115250), (18440, 107950), (21590, 92200), (23050, 86360), (25400, 78370), (31348, 63500), (31750, 62696), (34000, 58547), (34544, 57625), (36880, 53975), (39185, 50800), (43180, 46100)]