81000920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:83

約数の個数: 288

約数和(自身を含む): 264584880

約数和(自身を除く): 183583960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 17, 20, 22, 26, 28, 34, 35, 40, 44, 49, 52, 55, 56, 65, 68, 70, 77, 85, 88, 91, 98, 104, 110, 119, 130, 136, 140, 143, 154, 170, 182, 187, 196, 220, 221, 238, 245, 260, 280, 286, 289, 308, 340, 364, 374, 385, 392, 440, 442, 455, 476, 490, 520, 539, 572, 578, 595, 616, 637, 680, 715, 728, 748, 770, 833, 884, 910, 935, 952, 980, 1001, 1078, 1105, 1144, 1156, 1190, 1274, 1309, 1430, 1445, 1496, 1540, 1547, 1666, 1768, 1820, 1870, 1960, 2002, 2023, 2156, 2210, 2312, 2380, 2431, 2548, 2618, 2695, 2860, 2890, 3080, 3094, 3179, 3185, 3332, 3640, 3740, 3757, 4004, 4046, 4165, 4312, 4420, 4760, 4862, 5005, 5096, 5236, 5390, 5720, 5780, 6188, 6358, 6370, 6545, 6664, 7007, 7480, 7514, 7735, 8008, 8092, 8330, 8840, 9163, 9724, 10010, 10115, 10472, 10780, 10829, 11560, 12155, 12376, 12716, 12740, 13090, 14014, 14161, 15028, 15470, 15895, 16184, 16660, 17017, 18326, 18785, 19448, 20020, 20230, 21560, 21658, 22253, 24310, 25432, 25480, 26180, 26299, 28028, 28322, 30056, 30940, 31790, 33320, 34034, 35035, 36652, 37570, 40040, 40460, 41327, 43316, 44506, 45815, 48620, 52360, 52598, 54145, 56056, 56644, 61880, 63580, 68068, 70070, 70805, 73304, 75140, 80920, 82654, 85085, 86632, 89012, 91630, 97240, 105196, 108290, 111265, 113288, 119119, 127160, 131495, 136136, 140140, 141610, 150280, 155771, 165308, 170170, 178024, 183260, 184093, 206635, 210392, 216580, 222530, 238238, 262990, 280280, 283220, 289289, 311542, 330616, 340340, 366520, 368186, 413270, 433160, 445060, 476476, 525980, 566440, 578578, 595595, 623084, 680680, 736372, 778855, 826540, 890120, 920465, 952952, 1051960, 1157156, 1191190, 1246168, 1446445, 1472744, 1557710, 1653080, 1840930, 2025023, 2314312, 2382380, 2892890, 3115420, 3681860, 4050046, 4764760, 5785780, 6230840, 7363720, 8100092, 10125115, 11571560, 16200184, 20250230, 40500460, 81000920]

約数ペア:

[(1, 81000920), (2, 40500460), (4, 20250230), (5, 16200184), (7, 11571560), (8, 10125115), (10, 8100092), (11, 7363720), (13, 6230840), (14, 5785780), (17, 4764760), (20, 4050046), (22, 3681860), (26, 3115420), (28, 2892890), (34, 2382380), (35, 2314312), (40, 2025023), (44, 1840930), (49, 1653080), (52, 1557710), (55, 1472744), (56, 1446445), (65, 1246168), (68, 1191190), (70, 1157156), (77, 1051960), (85, 952952), (88, 920465), (91, 890120), (98, 826540), (104, 778855), (110, 736372), (119, 680680), (130, 623084), (136, 595595), (140, 578578), (143, 566440), (154, 525980), (170, 476476), (182, 445060), (187, 433160), (196, 413270), (220, 368186), (221, 366520), (238, 340340), (245, 330616), (260, 311542), (280, 289289), (286, 283220), (289, 280280), (308, 262990), (340, 238238), (364, 222530), (374, 216580), (385, 210392), (392, 206635), (440, 184093), (442, 183260), (455, 178024), (476, 170170), (490, 165308), (520, 155771), (539, 150280), (572, 141610), (578, 140140), (595, 136136), (616, 131495), (637, 127160), (680, 119119), (715, 113288), (728, 111265), (748, 108290), (770, 105196), (833, 97240), (884, 91630), (910, 89012), (935, 86632), (952, 85085), (980, 82654), (1001, 80920), (1078, 75140), (1105, 73304), (1144, 70805), (1156, 70070), (1190, 68068), (1274, 63580), (1309, 61880), (1430, 56644), (1445, 56056), (1496, 54145), (1540, 52598), (1547, 52360), (1666, 48620), (1768, 45815), (1820, 44506), (1870, 43316), (1960, 41327), (2002, 40460), (2023, 40040), (2156, 37570), (2210, 36652), (2312, 35035), (2380, 34034), (2431, 33320), (2548, 31790), (2618, 30940), (2695, 30056), (2860, 28322), (2890, 28028), (3080, 26299), (3094, 26180), (3179, 25480), (3185, 25432), (3332, 24310), (3640, 22253), (3740, 21658), (3757, 21560), (4004, 20230), (4046, 20020), (4165, 19448), (4312, 18785), (4420, 18326), (4760, 17017), (4862, 16660), (5005, 16184), (5096, 15895), (5236, 15470), (5390, 15028), (5720, 14161), (5780, 14014), (6188, 13090), (6358, 12740), (6370, 12716), (6545, 12376), (6664, 12155), (7007, 11560), (7480, 10829), (7514, 10780), (7735, 10472), (8008, 10115), (8092, 10010), (8330, 9724), (8840, 9163)]