201252680

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 460944000

約数和(自身を除く): 259691320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 193, 199, 262, 386, 398, 524, 655, 772, 796, 965, 995, 1048, 1310, 1544, 1592, 1930, 1990, 2620, 3860, 3980, 5240, 7720, 7960, 25283, 26069, 38407, 50566, 52138, 76814, 101132, 104276, 126415, 130345, 153628, 192035, 202264, 208552, 252830, 260690, 307256, 384070, 505660, 521380, 768140, 1011320, 1042760, 1536280, 5031317, 10062634, 20125268, 25156585, 40250536, 50313170, 100626340, 201252680]

約数ペア:

[(1, 201252680), (2, 100626340), (4, 50313170), (5, 40250536), (8, 25156585), (10, 20125268), (20, 10062634), (40, 5031317), (131, 1536280), (193, 1042760), (199, 1011320), (262, 768140), (386, 521380), (398, 505660), (524, 384070), (655, 307256), (772, 260690), (796, 252830), (965, 208552), (995, 202264), (1048, 192035), (1310, 153628), (1544, 130345), (1592, 126415), (1930, 104276), (1990, 101132), (2620, 76814), (3860, 52138), (3980, 50566), (5240, 38407), (7720, 26069), (7960, 25283)]