656247120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{20873}}^1$

素因数の和:21020

約数の個数: 80

約数和(自身を含む): 2049993792

約数和(自身を除く): 1393746672

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2096, 2620, 3144, 3930, 5240, 6288, 7860, 10480, 15720, 20873, 31440, 41746, 62619, 83492, 104365, 125238, 166984, 208730, 250476, 313095, 333968, 417460, 500952, 626190, 834920, 1001904, 1252380, 1669840, 2504760, 2734363, 5009520, 5468726, 8203089, 10937452, 13671815, 16406178, 21874904, 27343630, 32812356, 41015445, 43749808, 54687260, 65624712, 82030890, 109374520, 131249424, 164061780, 218749040, 328123560, 656247120]

約数ペア:

[(1, 656247120), (2, 328123560), (3, 218749040), (4, 164061780), (5, 131249424), (6, 109374520), (8, 82030890), (10, 65624712), (12, 54687260), (15, 43749808), (16, 41015445), (20, 32812356), (24, 27343630), (30, 21874904), (40, 16406178), (48, 13671815), (60, 10937452), (80, 8203089), (120, 5468726), (131, 5009520), (240, 2734363), (262, 2504760), (393, 1669840), (524, 1252380), (655, 1001904), (786, 834920), (1048, 626190), (1310, 500952), (1572, 417460), (1965, 333968), (2096, 313095), (2620, 250476), (3144, 208730), (3930, 166984), (5240, 125238), (6288, 104365), (7860, 83492), (10480, 62619), (15720, 41746), (20873, 31440)]