20942505280

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^2\times {\mathrm{199}}^1\times {\mathrm{911}}^1$

素因数の和:1165

約数の個数: 168

約数和(自身を含む): 52954732800

約数和(自身を除く): 32012227520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 199, 304, 320, 361, 380, 398, 608, 722, 760, 796, 911, 995, 1216, 1444, 1520, 1592, 1805, 1822, 1990, 2888, 3040, 3184, 3610, 3644, 3781, 3980, 4555, 5776, 6080, 6368, 7220, 7288, 7562, 7960, 9110, 11552, 12736, 14440, 14576, 15124, 15920, 17309, 18220, 18905, 23104, 28880, 29152, 30248, 31840, 34618, 36440, 37810, 57760, 58304, 60496, 63680, 69236, 71839, 72880, 75620, 86545, 115520, 120992, 138472, 143678, 145760, 151240, 173090, 181289, 241984, 276944, 287356, 291520, 302480, 328871, 346180, 359195, 362578, 553888, 574712, 604960, 657742, 692360, 718390, 725156, 906445, 1107776, 1149424, 1209920, 1315484, 1384720, 1436780, 1450312, 1644355, 1812890, 2298848, 2630968, 2769440, 2873560, 2900624, 3288710, 3444491, 3625780, 4597696, 5261936, 5538880, 5747120, 5801248, 6577420, 6888982, 7251560, 10523872, 11494240, 11602496, 13154840, 13777964, 14503120, 17222455, 21047744, 22988480, 26309680, 27555928, 29006240, 34444910, 52619360, 55111856, 58012480, 65445329, 68889820, 105238720, 110223712, 130890658, 137779640, 220447424, 261781316, 275559280, 327226645, 523562632, 551118560, 654453290, 1047125264, 1102237120, 1308906580, 2094250528, 2617813160, 4188501056, 5235626320, 10471252640, 20942505280]

約数ペア:

[(1, 20942505280), (2, 10471252640), (4, 5235626320), (5, 4188501056), (8, 2617813160), (10, 2094250528), (16, 1308906580), (19, 1102237120), (20, 1047125264), (32, 654453290), (38, 551118560), (40, 523562632), (64, 327226645), (76, 275559280), (80, 261781316), (95, 220447424), (152, 137779640), (160, 130890658), (190, 110223712), (199, 105238720), (304, 68889820), (320, 65445329), (361, 58012480), (380, 55111856), (398, 52619360), (608, 34444910), (722, 29006240), (760, 27555928), (796, 26309680), (911, 22988480), (995, 21047744), (1216, 17222455), (1444, 14503120), (1520, 13777964), (1592, 13154840), (1805, 11602496), (1822, 11494240), (1990, 10523872), (2888, 7251560), (3040, 6888982), (3184, 6577420), (3610, 5801248), (3644, 5747120), (3781, 5538880), (3980, 5261936), (4555, 4597696), (5776, 3625780), (6080, 3444491), (6368, 3288710), (7220, 2900624), (7288, 2873560), (7562, 2769440), (7960, 2630968), (9110, 2298848), (11552, 1812890), (12736, 1644355), (14440, 1450312), (14576, 1436780), (15124, 1384720), (15920, 1315484), (17309, 1209920), (18220, 1149424), (18905, 1107776), (23104, 906445), (28880, 725156), (29152, 718390), (30248, 692360), (31840, 657742), (34618, 604960), (36440, 574712), (37810, 553888), (57760, 362578), (58304, 359195), (60496, 346180), (63680, 328871), (69236, 302480), (71839, 291520), (72880, 287356), (75620, 276944), (86545, 241984), (115520, 181289), (120992, 173090), (138472, 151240), (143678, 145760)]