671200040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{342449}}^1$

素因数の和:342474

約数の個数: 48

約数和(自身を含む): 1756768500

約数和(自身を除く): 1085568460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 342449, 684898, 1369796, 1712245, 2397143, 2739592, 3424490, 4794286, 6848980, 9588572, 11985715, 13697960, 16780001, 19177144, 23971430, 33560002, 47942860, 67120004, 83900005, 95885720, 134240008, 167800010, 335600020, 671200040]

約数ペア:

[(1, 671200040), (2, 335600020), (4, 167800010), (5, 134240008), (7, 95885720), (8, 83900005), (10, 67120004), (14, 47942860), (20, 33560002), (28, 23971430), (35, 19177144), (40, 16780001), (49, 13697960), (56, 11985715), (70, 9588572), (98, 6848980), (140, 4794286), (196, 3424490), (245, 2739592), (280, 2397143), (392, 1712245), (490, 1369796), (980, 684898), (1960, 342449)]