78481980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 192

約数和(自身を含む): 261273600

約数和(自身を除く): 182791620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 71, 89, 90, 92, 108, 115, 135, 138, 142, 178, 180, 207, 213, 230, 267, 270, 276, 284, 345, 355, 356, 414, 426, 445, 460, 534, 540, 621, 639, 690, 710, 801, 828, 852, 890, 1035, 1065, 1068, 1242, 1278, 1335, 1380, 1420, 1602, 1633, 1780, 1917, 2047, 2070, 2130, 2403, 2484, 2556, 2670, 3105, 3195, 3204, 3266, 3834, 4005, 4094, 4140, 4260, 4806, 4899, 5340, 6141, 6210, 6319, 6390, 6532, 7668, 8010, 8165, 8188, 9585, 9612, 9798, 10235, 12015, 12282, 12420, 12638, 12780, 14697, 16020, 16330, 18423, 18957, 19170, 19596, 20470, 24030, 24495, 24564, 25276, 29394, 30705, 31595, 32660, 36846, 37914, 38340, 40940, 44091, 48060, 48990, 55269, 56871, 58788, 61410, 63190, 73485, 73692, 75828, 88182, 92115, 94785, 97980, 110538, 113742, 122820, 126380, 145337, 146970, 170613, 176364, 184230, 189570, 220455, 221076, 227484, 276345, 284355, 290674, 293940, 341226, 368460, 379140, 436011, 440910, 552690, 568710, 581348, 682452, 726685, 853065, 872022, 881820, 1105380, 1137420, 1308033, 1453370, 1706130, 1744044, 2180055, 2616066, 2906740, 3412260, 3924099, 4360110, 5232132, 6540165, 7848198, 8720220, 13080330, 15696396, 19620495, 26160660, 39240990, 78481980]

約数ペア:

[(1, 78481980), (2, 39240990), (3, 26160660), (4, 19620495), (5, 15696396), (6, 13080330), (9, 8720220), (10, 7848198), (12, 6540165), (15, 5232132), (18, 4360110), (20, 3924099), (23, 3412260), (27, 2906740), (30, 2616066), (36, 2180055), (45, 1744044), (46, 1706130), (54, 1453370), (60, 1308033), (69, 1137420), (71, 1105380), (89, 881820), (90, 872022), (92, 853065), (108, 726685), (115, 682452), (135, 581348), (138, 568710), (142, 552690), (178, 440910), (180, 436011), (207, 379140), (213, 368460), (230, 341226), (267, 293940), (270, 290674), (276, 284355), (284, 276345), (345, 227484), (355, 221076), (356, 220455), (414, 189570), (426, 184230), (445, 176364), (460, 170613), (534, 146970), (540, 145337), (621, 126380), (639, 122820), (690, 113742), (710, 110538), (801, 97980), (828, 94785), (852, 92115), (890, 88182), (1035, 75828), (1065, 73692), (1068, 73485), (1242, 63190), (1278, 61410), (1335, 58788), (1380, 56871), (1420, 55269), (1602, 48990), (1633, 48060), (1780, 44091), (1917, 40940), (2047, 38340), (2070, 37914), (2130, 36846), (2403, 32660), (2484, 31595), (2556, 30705), (2670, 29394), (3105, 25276), (3195, 24564), (3204, 24495), (3266, 24030), (3834, 20470), (4005, 19596), (4094, 19170), (4140, 18957), (4260, 18423), (4806, 16330), (4899, 16020), (5340, 14697), (6141, 12780), (6210, 12638), (6319, 12420), (6390, 12282), (6532, 12015), (7668, 10235), (8010, 9798), (8165, 9612), (8188, 9585)]