8800400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{449}}^1$

素因数の和:481

約数の個数: 90

約数和(自身を含む): 24649650

約数和(自身を除く): 15849250

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 449, 490, 560, 700, 784, 898, 980, 1225, 1400, 1796, 1960, 2245, 2450, 2800, 3143, 3592, 3920, 4490, 4900, 6286, 7184, 8980, 9800, 11225, 12572, 15715, 17960, 19600, 22001, 22450, 25144, 31430, 35920, 44002, 44900, 50288, 62860, 78575, 88004, 89800, 110005, 125720, 157150, 176008, 179600, 220010, 251440, 314300, 352016, 440020, 550025, 628600, 880040, 1100050, 1257200, 1760080, 2200100, 4400200, 8800400]

約数ペア:

[(1, 8800400), (2, 4400200), (4, 2200100), (5, 1760080), (7, 1257200), (8, 1100050), (10, 880040), (14, 628600), (16, 550025), (20, 440020), (25, 352016), (28, 314300), (35, 251440), (40, 220010), (49, 179600), (50, 176008), (56, 157150), (70, 125720), (80, 110005), (98, 89800), (100, 88004), (112, 78575), (140, 62860), (175, 50288), (196, 44900), (200, 44002), (245, 35920), (280, 31430), (350, 25144), (392, 22450), (400, 22001), (449, 19600), (490, 17960), (560, 15715), (700, 12572), (784, 11225), (898, 9800), (980, 8980), (1225, 7184), (1400, 6286), (1796, 4900), (1960, 4490), (2245, 3920), (2450, 3592), (2800, 3143)]