25286680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7103}}^1$

素因数の和:7203

約数の個数: 32

約数和(自身を含む): 57542400

約数和(自身を除く): 32255720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 7103, 14206, 28412, 35515, 56824, 71030, 142060, 284120, 632167, 1264334, 2528668, 3160835, 5057336, 6321670, 12643340, 25286680]

約数ペア:

[(1, 25286680), (2, 12643340), (4, 6321670), (5, 5057336), (8, 3160835), (10, 2528668), (20, 1264334), (40, 632167), (89, 284120), (178, 142060), (356, 71030), (445, 56824), (712, 35515), (890, 28412), (1780, 14206), (3560, 7103)]