127960820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{25903}}^1$

素因数の和:25944

約数の個数: 48

約数和(自身を含む): 304631040

約数和(自身を除く): 176670220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 25903, 51806, 103612, 129515, 259030, 336739, 492157, 518060, 673478, 984314, 1346956, 1683695, 1968628, 2460785, 3367390, 4921570, 6398041, 6734780, 9843140, 12796082, 25592164, 31990205, 63980410, 127960820]

約数ペア:

[(1, 127960820), (2, 63980410), (4, 31990205), (5, 25592164), (10, 12796082), (13, 9843140), (19, 6734780), (20, 6398041), (26, 4921570), (38, 3367390), (52, 2460785), (65, 1968628), (76, 1683695), (95, 1346956), (130, 984314), (190, 673478), (247, 518060), (260, 492157), (380, 336739), (494, 259030), (988, 129515), (1235, 103612), (2470, 51806), (4940, 25903)]