248147840

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 620421120

約数和(自身を除く): 372273280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 71, 80, 86, 127, 128, 142, 160, 172, 215, 254, 284, 320, 344, 355, 430, 508, 568, 635, 640, 688, 710, 860, 1016, 1136, 1270, 1376, 1420, 1720, 2032, 2272, 2540, 2752, 2840, 3053, 3440, 4064, 4544, 5080, 5461, 5504, 5680, 6106, 6880, 8128, 9017, 9088, 10160, 10922, 11360, 12212, 13760, 15265, 16256, 18034, 20320, 21844, 22720, 24424, 27305, 27520, 30530, 36068, 40640, 43688, 45085, 45440, 48848, 54610, 61060, 72136, 81280, 87376, 90170, 97696, 109220, 122120, 144272, 174752, 180340, 195392, 218440, 244240, 288544, 349504, 360680, 387731, 390784, 436880, 488480, 577088, 699008, 721360, 775462, 873760, 976960, 1154176, 1442720, 1550924, 1747520, 1938655, 1953920, 2885440, 3101848, 3495040, 3877310, 5770880, 6203696, 7754620, 12407392, 15509240, 24814784, 31018480, 49629568, 62036960, 124073920, 248147840]

約数ペア:

[(1, 248147840), (2, 124073920), (4, 62036960), (5, 49629568), (8, 31018480), (10, 24814784), (16, 15509240), (20, 12407392), (32, 7754620), (40, 6203696), (43, 5770880), (64, 3877310), (71, 3495040), (80, 3101848), (86, 2885440), (127, 1953920), (128, 1938655), (142, 1747520), (160, 1550924), (172, 1442720), (215, 1154176), (254, 976960), (284, 873760), (320, 775462), (344, 721360), (355, 699008), (430, 577088), (508, 488480), (568, 436880), (635, 390784), (640, 387731), (688, 360680), (710, 349504), (860, 288544), (1016, 244240), (1136, 218440), (1270, 195392), (1376, 180340), (1420, 174752), (1720, 144272), (2032, 122120), (2272, 109220), (2540, 97696), (2752, 90170), (2840, 87376), (3053, 81280), (3440, 72136), (4064, 61060), (4544, 54610), (5080, 48848), (5461, 45440), (5504, 45085), (5680, 43688), (6106, 40640), (6880, 36068), (8128, 30530), (9017, 27520), (9088, 27305), (10160, 24424), (10922, 22720), (11360, 21844), (12212, 20320), (13760, 18034), (15265, 16256)]