25881940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{929}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 62496000

約数和(自身を除く): 36614060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 929, 995, 1393, 1858, 1990, 2786, 3716, 3980, 4645, 5572, 6503, 6965, 9290, 13006, 13930, 18580, 26012, 27860, 32515, 65030, 130060, 184871, 369742, 739484, 924355, 1294097, 1848710, 2588194, 3697420, 5176388, 6470485, 12940970, 25881940]

約数ペア:

[(1, 25881940), (2, 12940970), (4, 6470485), (5, 5176388), (7, 3697420), (10, 2588194), (14, 1848710), (20, 1294097), (28, 924355), (35, 739484), (70, 369742), (140, 184871), (199, 130060), (398, 65030), (796, 32515), (929, 27860), (995, 26012), (1393, 18580), (1858, 13930), (1990, 13006), (2786, 9290), (3716, 6965), (3980, 6503), (4645, 5572)]