81246880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 192

約数和(自身を含む): 233186688

約数和(自身を除く): 151939808

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 53, 55, 65, 67, 80, 88, 104, 106, 110, 130, 134, 143, 160, 176, 208, 212, 220, 260, 265, 268, 286, 335, 352, 416, 424, 440, 520, 530, 536, 572, 583, 670, 689, 715, 737, 848, 871, 880, 1040, 1060, 1072, 1144, 1166, 1340, 1378, 1430, 1474, 1696, 1742, 1760, 2080, 2120, 2144, 2288, 2332, 2680, 2756, 2860, 2915, 2948, 3445, 3484, 3551, 3685, 4240, 4355, 4576, 4664, 5360, 5512, 5720, 5830, 5896, 6890, 6968, 7102, 7370, 7579, 8480, 8710, 9328, 9581, 10720, 11024, 11440, 11660, 11792, 13780, 13936, 14204, 14740, 15158, 17420, 17755, 18656, 19162, 22048, 22880, 23320, 23584, 27560, 27872, 28408, 29480, 30316, 34840, 35510, 37895, 38324, 39061, 46163, 46640, 47905, 55120, 56816, 58960, 60632, 69680, 71020, 75790, 76648, 78122, 92326, 93280, 95810, 110240, 113632, 117920, 121264, 139360, 142040, 151580, 153296, 156244, 184652, 191620, 195305, 230815, 242528, 284080, 303160, 306592, 312488, 369304, 383240, 390610, 461630, 507793, 568160, 606320, 624976, 738608, 766480, 781220, 923260, 1015586, 1212640, 1249952, 1477216, 1532960, 1562440, 1846520, 2031172, 2538965, 3124880, 3693040, 4062344, 5077930, 6249760, 7386080, 8124688, 10155860, 16249376, 20311720, 40623440, 81246880]

約数ペア:

[(1, 81246880), (2, 40623440), (4, 20311720), (5, 16249376), (8, 10155860), (10, 8124688), (11, 7386080), (13, 6249760), (16, 5077930), (20, 4062344), (22, 3693040), (26, 3124880), (32, 2538965), (40, 2031172), (44, 1846520), (52, 1562440), (53, 1532960), (55, 1477216), (65, 1249952), (67, 1212640), (80, 1015586), (88, 923260), (104, 781220), (106, 766480), (110, 738608), (130, 624976), (134, 606320), (143, 568160), (160, 507793), (176, 461630), (208, 390610), (212, 383240), (220, 369304), (260, 312488), (265, 306592), (268, 303160), (286, 284080), (335, 242528), (352, 230815), (416, 195305), (424, 191620), (440, 184652), (520, 156244), (530, 153296), (536, 151580), (572, 142040), (583, 139360), (670, 121264), (689, 117920), (715, 113632), (737, 110240), (848, 95810), (871, 93280), (880, 92326), (1040, 78122), (1060, 76648), (1072, 75790), (1144, 71020), (1166, 69680), (1340, 60632), (1378, 58960), (1430, 56816), (1474, 55120), (1696, 47905), (1742, 46640), (1760, 46163), (2080, 39061), (2120, 38324), (2144, 37895), (2288, 35510), (2332, 34840), (2680, 30316), (2756, 29480), (2860, 28408), (2915, 27872), (2948, 27560), (3445, 23584), (3484, 23320), (3551, 22880), (3685, 22048), (4240, 19162), (4355, 18656), (4576, 17755), (4664, 17420), (5360, 15158), (5512, 14740), (5720, 14204), (5830, 13936), (5896, 13780), (6890, 11792), (6968, 11660), (7102, 11440), (7370, 11024), (7579, 10720), (8480, 9581), (8710, 9328)]