1964295040

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:720

約数の個数: 128

約数和(自身を含む): 4849463520

約数和(自身を除く): 2885168480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 137, 160, 172, 215, 274, 320, 344, 430, 521, 548, 640, 685, 688, 860, 1042, 1096, 1370, 1376, 1720, 2084, 2192, 2605, 2740, 2752, 3440, 4168, 4384, 5210, 5480, 5504, 5891, 6880, 8336, 8768, 10420, 10960, 11782, 13760, 16672, 17536, 20840, 21920, 22403, 23564, 27520, 29455, 33344, 41680, 43840, 44806, 47128, 58910, 66688, 71377, 83360, 87680, 89612, 94256, 112015, 117820, 142754, 166720, 179224, 188512, 224030, 235640, 285508, 333440, 356885, 358448, 377024, 448060, 471280, 571016, 713770, 716896, 754048, 896120, 942560, 1142032, 1427540, 1433792, 1792240, 1885120, 2284064, 2855080, 2867584, 3069211, 3584480, 3770240, 4568128, 5710160, 6138422, 7168960, 9136256, 11420320, 12276844, 14337920, 15346055, 22840640, 24553688, 30692110, 45681280, 49107376, 61384220, 98214752, 122768440, 196429504, 245536880, 392859008, 491073760, 982147520, 1964295040]

約数ペア:

[(1, 1964295040), (2, 982147520), (4, 491073760), (5, 392859008), (8, 245536880), (10, 196429504), (16, 122768440), (20, 98214752), (32, 61384220), (40, 49107376), (43, 45681280), (64, 30692110), (80, 24553688), (86, 22840640), (128, 15346055), (137, 14337920), (160, 12276844), (172, 11420320), (215, 9136256), (274, 7168960), (320, 6138422), (344, 5710160), (430, 4568128), (521, 3770240), (548, 3584480), (640, 3069211), (685, 2867584), (688, 2855080), (860, 2284064), (1042, 1885120), (1096, 1792240), (1370, 1433792), (1376, 1427540), (1720, 1142032), (2084, 942560), (2192, 896120), (2605, 754048), (2740, 716896), (2752, 713770), (3440, 571016), (4168, 471280), (4384, 448060), (5210, 377024), (5480, 358448), (5504, 356885), (5891, 333440), (6880, 285508), (8336, 235640), (8768, 224030), (10420, 188512), (10960, 179224), (11782, 166720), (13760, 142754), (16672, 117820), (17536, 112015), (20840, 94256), (21920, 89612), (22403, 87680), (23564, 83360), (27520, 71377), (29455, 66688), (33344, 58910), (41680, 47128), (43840, 44806)]