31015680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:262

約数の個数: 144

約数和(自身を含む): 101987424

約数和(自身を除く): 70971744

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 197, 205, 240, 246, 256, 320, 328, 384, 394, 410, 480, 492, 591, 615, 640, 656, 768, 788, 820, 960, 984, 985, 1182, 1230, 1280, 1312, 1576, 1640, 1920, 1968, 1970, 2364, 2460, 2624, 2955, 3152, 3280, 3840, 3936, 3940, 4728, 4920, 5248, 5910, 6304, 6560, 7872, 7880, 8077, 9456, 9840, 10496, 11820, 12608, 13120, 15744, 15760, 16154, 18912, 19680, 23640, 24231, 25216, 26240, 31488, 31520, 32308, 37824, 39360, 40385, 47280, 48462, 50432, 52480, 63040, 64616, 75648, 78720, 80770, 94560, 96924, 121155, 126080, 129232, 151296, 157440, 161540, 189120, 193848, 242310, 252160, 258464, 323080, 378240, 387696, 484620, 516928, 646160, 756480, 775392, 969240, 1033856, 1292320, 1550784, 1938480, 2067712, 2584640, 3101568, 3876960, 5169280, 6203136, 7753920, 10338560, 15507840, 31015680]

約数ペア:

[(1, 31015680), (2, 15507840), (3, 10338560), (4, 7753920), (5, 6203136), (6, 5169280), (8, 3876960), (10, 3101568), (12, 2584640), (15, 2067712), (16, 1938480), (20, 1550784), (24, 1292320), (30, 1033856), (32, 969240), (40, 775392), (41, 756480), (48, 646160), (60, 516928), (64, 484620), (80, 387696), (82, 378240), (96, 323080), (120, 258464), (123, 252160), (128, 242310), (160, 193848), (164, 189120), (192, 161540), (197, 157440), (205, 151296), (240, 129232), (246, 126080), (256, 121155), (320, 96924), (328, 94560), (384, 80770), (394, 78720), (410, 75648), (480, 64616), (492, 63040), (591, 52480), (615, 50432), (640, 48462), (656, 47280), (768, 40385), (788, 39360), (820, 37824), (960, 32308), (984, 31520), (985, 31488), (1182, 26240), (1230, 25216), (1280, 24231), (1312, 23640), (1576, 19680), (1640, 18912), (1920, 16154), (1968, 15760), (1970, 15744), (2364, 13120), (2460, 12608), (2624, 11820), (2955, 10496), (3152, 9840), (3280, 9456), (3840, 8077), (3936, 7880), (3940, 7872), (4728, 6560), (4920, 6304), (5248, 5910)]