31379600

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{1601}}^1$

素因数の和:1633

約数の個数: 90

約数和(自身を含む): 87752754

約数和(自身を除く): 56373154

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1601, 1960, 2450, 2800, 3202, 3920, 4900, 6404, 8005, 9800, 11207, 12808, 16010, 19600, 22414, 25616, 32020, 40025, 44828, 56035, 64040, 78449, 80050, 89656, 112070, 128080, 156898, 160100, 179312, 224140, 280175, 313796, 320200, 392245, 448280, 560350, 627592, 640400, 784490, 896560, 1120700, 1255184, 1568980, 1961225, 2241400, 3137960, 3922450, 4482800, 6275920, 7844900, 15689800, 31379600]

約数ペア:

[(1, 31379600), (2, 15689800), (4, 7844900), (5, 6275920), (7, 4482800), (8, 3922450), (10, 3137960), (14, 2241400), (16, 1961225), (20, 1568980), (25, 1255184), (28, 1120700), (35, 896560), (40, 784490), (49, 640400), (50, 627592), (56, 560350), (70, 448280), (80, 392245), (98, 320200), (100, 313796), (112, 280175), (140, 224140), (175, 179312), (196, 160100), (200, 156898), (245, 128080), (280, 112070), (350, 89656), (392, 80050), (400, 78449), (490, 64040), (560, 56035), (700, 44828), (784, 40025), (980, 32020), (1225, 25616), (1400, 22414), (1601, 19600), (1960, 16010), (2450, 12808), (2800, 11207), (3202, 9800), (3920, 8005), (4900, 6404)]