199918680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128153}}^1$

素因数の和:128180

約数の個数: 64

約数和(自身を含む): 645896160

約数和(自身を除く): 445977480

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, 128153, 256306, 384459, 512612, 640765, 768918, 1025224, 1281530, 1537836, 1665989, 1922295, 2563060, 3075672, 3331978, 3844590, 4997967, 5126120, 6663956, 7689180, 8329945, 9995934, 13327912, 15378360, 16659890, 19991868, 24989835, 33319780, 39983736, 49979670, 66639560, 99959340, 199918680]

約数ペア:

[(1, 199918680), (2, 99959340), (3, 66639560), (4, 49979670), (5, 39983736), (6, 33319780), (8, 24989835), (10, 19991868), (12, 16659890), (13, 15378360), (15, 13327912), (20, 9995934), (24, 8329945), (26, 7689180), (30, 6663956), (39, 5126120), (40, 4997967), (52, 3844590), (60, 3331978), (65, 3075672), (78, 2563060), (104, 1922295), (120, 1665989), (130, 1537836), (156, 1281530), (195, 1025224), (260, 768918), (312, 640765), (390, 512612), (520, 384459), (780, 256306), (1560, 128153)]