890996080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^2$

素因数の和:435

約数の個数: 120

約数和(自身を含む): 2340037728

約数和(自身を除く): 1449041648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 193, 208, 230, 260, 299, 368, 386, 460, 520, 598, 772, 920, 965, 1040, 1196, 1495, 1544, 1840, 1930, 2392, 2509, 2990, 3088, 3860, 4439, 4784, 5018, 5980, 7720, 8878, 10036, 11960, 12545, 15440, 17756, 20072, 22195, 23920, 25090, 35512, 37249, 40144, 44390, 50180, 57707, 71024, 74498, 88780, 100360, 115414, 148996, 177560, 186245, 200720, 230828, 288535, 297992, 355120, 372490, 461656, 484237, 577070, 595984, 744980, 856727, 923312, 968474, 1154140, 1489960, 1713454, 1936948, 2308280, 2421185, 2979920, 3426908, 3873896, 4283635, 4616560, 4842370, 6853816, 7747792, 8567270, 9684740, 11137451, 13707632, 17134540, 19369480, 22274902, 34269080, 38738960, 44549804, 55687255, 68538160, 89099608, 111374510, 178199216, 222749020, 445498040, 890996080]

約数ペア:

[(1, 890996080), (2, 445498040), (4, 222749020), (5, 178199216), (8, 111374510), (10, 89099608), (13, 68538160), (16, 55687255), (20, 44549804), (23, 38738960), (26, 34269080), (40, 22274902), (46, 19369480), (52, 17134540), (65, 13707632), (80, 11137451), (92, 9684740), (104, 8567270), (115, 7747792), (130, 6853816), (184, 4842370), (193, 4616560), (208, 4283635), (230, 3873896), (260, 3426908), (299, 2979920), (368, 2421185), (386, 2308280), (460, 1936948), (520, 1713454), (598, 1489960), (772, 1154140), (920, 968474), (965, 923312), (1040, 856727), (1196, 744980), (1495, 595984), (1544, 577070), (1840, 484237), (1930, 461656), (2392, 372490), (2509, 355120), (2990, 297992), (3088, 288535), (3860, 230828), (4439, 200720), (4784, 186245), (5018, 177560), (5980, 148996), (7720, 115414), (8878, 100360), (10036, 88780), (11960, 74498), (12545, 71024), (15440, 57707), (17756, 50180), (20072, 44390), (22195, 40144), (23920, 37249), (25090, 35512)]