31214080

素因数分解:

$2^9\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:249

約数の個数: 80

約数和(自身を含む): 76233960

約数和(自身を除く): 45019880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 137, 160, 178, 256, 274, 320, 356, 445, 512, 548, 640, 685, 712, 890, 1096, 1280, 1370, 1424, 1780, 2192, 2560, 2740, 2848, 3560, 4384, 5480, 5696, 7120, 8768, 10960, 11392, 12193, 14240, 17536, 21920, 22784, 24386, 28480, 35072, 43840, 45568, 48772, 56960, 60965, 70144, 87680, 97544, 113920, 121930, 175360, 195088, 227840, 243860, 350720, 390176, 487720, 780352, 975440, 1560704, 1950880, 3121408, 3901760, 6242816, 7803520, 15607040, 31214080]

約数ペア:

[(1, 31214080), (2, 15607040), (4, 7803520), (5, 6242816), (8, 3901760), (10, 3121408), (16, 1950880), (20, 1560704), (32, 975440), (40, 780352), (64, 487720), (80, 390176), (89, 350720), (128, 243860), (137, 227840), (160, 195088), (178, 175360), (256, 121930), (274, 113920), (320, 97544), (356, 87680), (445, 70144), (512, 60965), (548, 56960), (640, 48772), (685, 45568), (712, 43840), (890, 35072), (1096, 28480), (1280, 24386), (1370, 22784), (1424, 21920), (1780, 17536), (2192, 14240), (2560, 12193), (2740, 11392), (2848, 10960), (3560, 8768), (4384, 7120), (5480, 5696)]