1272211840

素因数分解:

$2^7\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9421}}^1$

素因数の和:9651

約数の個数: 64

約数和(自身を含む): 3056119920

約数和(自身を除く): 1783908080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 320, 422, 640, 844, 1055, 1688, 2110, 3376, 4220, 6752, 8440, 9421, 13504, 16880, 18842, 27008, 33760, 37684, 47105, 67520, 75368, 94210, 135040, 150736, 188420, 301472, 376840, 602944, 753680, 1205888, 1507360, 1987831, 3014720, 3975662, 6029440, 7951324, 9939155, 15902648, 19878310, 31805296, 39756620, 63610592, 79513240, 127221184, 159026480, 254442368, 318052960, 636105920, 1272211840]

約数ペア:

[(1, 1272211840), (2, 636105920), (4, 318052960), (5, 254442368), (8, 159026480), (10, 127221184), (16, 79513240), (20, 63610592), (32, 39756620), (40, 31805296), (64, 19878310), (80, 15902648), (128, 9939155), (160, 7951324), (211, 6029440), (320, 3975662), (422, 3014720), (640, 1987831), (844, 1507360), (1055, 1205888), (1688, 753680), (2110, 602944), (3376, 376840), (4220, 301472), (6752, 188420), (8440, 150736), (9421, 135040), (13504, 94210), (16880, 75368), (18842, 67520), (27008, 47105), (33760, 37684)]