78972320

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{1439}}^1$

素因数の和:1475

約数の個数: 96

約数和(自身を含む): 217728000

約数和(自身を除く): 138755680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1120, 1372, 1439, 1568, 1715, 1960, 2744, 2878, 3430, 3920, 5488, 5756, 6860, 7195, 7840, 10073, 10976, 11512, 13720, 14390, 20146, 23024, 27440, 28780, 40292, 46048, 50365, 54880, 57560, 70511, 80584, 100730, 115120, 141022, 161168, 201460, 230240, 282044, 322336, 352555, 402920, 493577, 564088, 705110, 805840, 987154, 1128176, 1410220, 1611680, 1974308, 2256352, 2467885, 2820440, 3948616, 4935770, 5640880, 7897232, 9871540, 11281760, 15794464, 19743080, 39486160, 78972320]

約数ペア:

[(1, 78972320), (2, 39486160), (4, 19743080), (5, 15794464), (7, 11281760), (8, 9871540), (10, 7897232), (14, 5640880), (16, 4935770), (20, 3948616), (28, 2820440), (32, 2467885), (35, 2256352), (40, 1974308), (49, 1611680), (56, 1410220), (70, 1128176), (80, 987154), (98, 805840), (112, 705110), (140, 564088), (160, 493577), (196, 402920), (224, 352555), (245, 322336), (280, 282044), (343, 230240), (392, 201460), (490, 161168), (560, 141022), (686, 115120), (784, 100730), (980, 80584), (1120, 70511), (1372, 57560), (1439, 54880), (1568, 50365), (1715, 46048), (1960, 40292), (2744, 28780), (2878, 27440), (3430, 23024), (3920, 20146), (5488, 14390), (5756, 13720), (6860, 11512), (7195, 10976), (7840, 10073)]