210005120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{587}}^1$

素因数の和:662

約数の個数: 128

約数和(自身を含む): 554178240

約数和(自身を除く): 344173120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 104, 128, 130, 160, 172, 208, 215, 260, 320, 344, 416, 430, 520, 559, 587, 640, 688, 832, 860, 1040, 1118, 1174, 1376, 1664, 1720, 2080, 2236, 2348, 2752, 2795, 2935, 3440, 4160, 4472, 4696, 5504, 5590, 5870, 6880, 7631, 8320, 8944, 9392, 11180, 11740, 13760, 15262, 17888, 18784, 22360, 23480, 25241, 27520, 30524, 35776, 37568, 38155, 44720, 46960, 50482, 61048, 71552, 75136, 76310, 89440, 93920, 100964, 122096, 126205, 152620, 178880, 187840, 201928, 244192, 252410, 305240, 328133, 357760, 375680, 403856, 488384, 504820, 610480, 656266, 807712, 976768, 1009640, 1220960, 1312532, 1615424, 1640665, 2019280, 2441920, 2625064, 3230848, 3281330, 4038560, 4883840, 5250128, 6562660, 8077120, 10500256, 13125320, 16154240, 21000512, 26250640, 42001024, 52501280, 105002560, 210005120]

約数ペア:

[(1, 210005120), (2, 105002560), (4, 52501280), (5, 42001024), (8, 26250640), (10, 21000512), (13, 16154240), (16, 13125320), (20, 10500256), (26, 8077120), (32, 6562660), (40, 5250128), (43, 4883840), (52, 4038560), (64, 3281330), (65, 3230848), (80, 2625064), (86, 2441920), (104, 2019280), (128, 1640665), (130, 1615424), (160, 1312532), (172, 1220960), (208, 1009640), (215, 976768), (260, 807712), (320, 656266), (344, 610480), (416, 504820), (430, 488384), (520, 403856), (559, 375680), (587, 357760), (640, 328133), (688, 305240), (832, 252410), (860, 244192), (1040, 201928), (1118, 187840), (1174, 178880), (1376, 152620), (1664, 126205), (1720, 122096), (2080, 100964), (2236, 93920), (2348, 89440), (2752, 76310), (2795, 75136), (2935, 71552), (3440, 61048), (4160, 50482), (4472, 46960), (4696, 44720), (5504, 38155), (5590, 37568), (5870, 35776), (6880, 30524), (7631, 27520), (8320, 25241), (8944, 23480), (9392, 22360), (11180, 18784), (11740, 17888), (13760, 15262)]