880040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{449}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 2308500

約数和(自身を除く): 1428460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 449, 490, 898, 980, 1796, 1960, 2245, 3143, 3592, 4490, 6286, 8980, 12572, 15715, 17960, 22001, 25144, 31430, 44002, 62860, 88004, 110005, 125720, 176008, 220010, 440020, 880040]

約数ペア:

[(1, 880040), (2, 440020), (4, 220010), (5, 176008), (7, 125720), (8, 110005), (10, 88004), (14, 62860), (20, 44002), (28, 31430), (35, 25144), (40, 22001), (49, 17960), (56, 15715), (70, 12572), (98, 8980), (140, 6286), (196, 4490), (245, 3592), (280, 3143), (392, 2245), (449, 1960), (490, 1796), (898, 980)]