20217938520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12960217}}^1$

素因数の和:12960244

約数の個数: 64

約数和(自身を含む): 65319498720

約数和(自身を除く): 45101560200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12960217, 25920434, 38880651, 51840868, 64801085, 77761302, 103681736, 129602170, 155522604, 168482821, 194403255, 259204340, 311045208, 336965642, 388806510, 505448463, 518408680, 673931284, 777613020, 842414105, 1010896926, 1347862568, 1555226040, 1684828210, 2021793852, 2527242315, 3369656420, 4043587704, 5054484630, 6739312840, 10108969260, 20217938520]

約数ペア:

[(1, 20217938520), (2, 10108969260), (3, 6739312840), (4, 5054484630), (5, 4043587704), (6, 3369656420), (8, 2527242315), (10, 2021793852), (12, 1684828210), (13, 1555226040), (15, 1347862568), (20, 1010896926), (24, 842414105), (26, 777613020), (30, 673931284), (39, 518408680), (40, 505448463), (52, 388806510), (60, 336965642), (65, 311045208), (78, 259204340), (104, 194403255), (120, 168482821), (130, 155522604), (156, 129602170), (195, 103681736), (260, 77761302), (312, 64801085), (390, 51840868), (520, 38880651), (780, 25920434), (1560, 12960217)]