40897280

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 99338400

約数和(自身を除く): 58441120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 359, 445, 640, 712, 718, 890, 1280, 1424, 1436, 1780, 1795, 2848, 2872, 3560, 3590, 5696, 5744, 7120, 7180, 11392, 11488, 14240, 14360, 22784, 22976, 28480, 28720, 31951, 45952, 56960, 57440, 63902, 91904, 113920, 114880, 127804, 159755, 229760, 255608, 319510, 459520, 511216, 639020, 1022432, 1278040, 2044864, 2556080, 4089728, 5112160, 8179456, 10224320, 20448640, 40897280]

約数ペア:

[(1, 40897280), (2, 20448640), (4, 10224320), (5, 8179456), (8, 5112160), (10, 4089728), (16, 2556080), (20, 2044864), (32, 1278040), (40, 1022432), (64, 639020), (80, 511216), (89, 459520), (128, 319510), (160, 255608), (178, 229760), (256, 159755), (320, 127804), (356, 114880), (359, 113920), (445, 91904), (640, 63902), (712, 57440), (718, 56960), (890, 45952), (1280, 31951), (1424, 28720), (1436, 28480), (1780, 22976), (1795, 22784), (2848, 14360), (2872, 14240), (3560, 11488), (3590, 11392), (5696, 7180), (5744, 7120)]