30280040

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2207}}^1$

素因数の和:2239

約数の個数: 64

約数和(自身を含む): 79488000

約数和(自身を除く): 49207960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2207, 2744, 3430, 4414, 6860, 8828, 11035, 13720, 15449, 17656, 22070, 30898, 44140, 61796, 77245, 88280, 108143, 123592, 154490, 216286, 308980, 432572, 540715, 617960, 757001, 865144, 1081430, 1514002, 2162860, 3028004, 3785005, 4325720, 6056008, 7570010, 15140020, 30280040]

約数ペア:

[(1, 30280040), (2, 15140020), (4, 7570010), (5, 6056008), (7, 4325720), (8, 3785005), (10, 3028004), (14, 2162860), (20, 1514002), (28, 1081430), (35, 865144), (40, 757001), (49, 617960), (56, 540715), (70, 432572), (98, 308980), (140, 216286), (196, 154490), (245, 123592), (280, 108143), (343, 88280), (392, 77245), (490, 61796), (686, 44140), (980, 30898), (1372, 22070), (1715, 17656), (1960, 15449), (2207, 13720), (2744, 11035), (3430, 8828), (4414, 6860)]