78474880

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:258

約数の個数: 128

約数和(自身を含む): 208863360

約数和(自身を除く): 130388480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 71, 80, 88, 110, 128, 142, 157, 160, 176, 220, 284, 314, 320, 352, 355, 440, 568, 628, 640, 704, 710, 781, 785, 880, 1136, 1256, 1408, 1420, 1562, 1570, 1727, 1760, 2272, 2512, 2840, 3124, 3140, 3454, 3520, 3905, 4544, 5024, 5680, 6248, 6280, 6908, 7040, 7810, 8635, 9088, 10048, 11147, 11360, 12496, 12560, 13816, 15620, 17270, 20096, 22294, 22720, 24992, 25120, 27632, 31240, 34540, 44588, 45440, 49984, 50240, 55264, 55735, 62480, 69080, 89176, 99968, 100480, 110528, 111470, 122617, 124960, 138160, 178352, 221056, 222940, 245234, 249920, 276320, 356704, 445880, 490468, 499840, 552640, 613085, 713408, 891760, 980936, 1105280, 1226170, 1426816, 1783520, 1961872, 2452340, 3567040, 3923744, 4904680, 7134080, 7847488, 9809360, 15694976, 19618720, 39237440, 78474880]

約数ペア:

[(1, 78474880), (2, 39237440), (4, 19618720), (5, 15694976), (8, 9809360), (10, 7847488), (11, 7134080), (16, 4904680), (20, 3923744), (22, 3567040), (32, 2452340), (40, 1961872), (44, 1783520), (55, 1426816), (64, 1226170), (71, 1105280), (80, 980936), (88, 891760), (110, 713408), (128, 613085), (142, 552640), (157, 499840), (160, 490468), (176, 445880), (220, 356704), (284, 276320), (314, 249920), (320, 245234), (352, 222940), (355, 221056), (440, 178352), (568, 138160), (628, 124960), (640, 122617), (704, 111470), (710, 110528), (781, 100480), (785, 99968), (880, 89176), (1136, 69080), (1256, 62480), (1408, 55735), (1420, 55264), (1562, 50240), (1570, 49984), (1727, 45440), (1760, 44588), (2272, 34540), (2512, 31240), (2840, 27632), (3124, 25120), (3140, 24992), (3454, 22720), (3520, 22294), (3905, 20096), (4544, 17270), (5024, 15620), (5680, 13816), (6248, 12560), (6280, 12496), (6908, 11360), (7040, 11147), (7810, 10048), (8635, 9088)]