198857100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{50989}}^1$

素因数の和:51019

約数の個数: 72

約数和(自身を含む): 619630480

約数和(自身を除く): 420773380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 50989, 101978, 152967, 203956, 254945, 305934, 509890, 611868, 662857, 764835, 1019780, 1274725, 1325714, 1529670, 1988571, 2549450, 2651428, 3059340, 3314285, 3824175, 3977142, 5098900, 6628570, 7648350, 7954284, 9942855, 13257140, 15296700, 16571425, 19885710, 33142850, 39771420, 49714275, 66285700, 99428550, 198857100]

約数ペア:

[(1, 198857100), (2, 99428550), (3, 66285700), (4, 49714275), (5, 39771420), (6, 33142850), (10, 19885710), (12, 16571425), (13, 15296700), (15, 13257140), (20, 9942855), (25, 7954284), (26, 7648350), (30, 6628570), (39, 5098900), (50, 3977142), (52, 3824175), (60, 3314285), (65, 3059340), (75, 2651428), (78, 2549450), (100, 1988571), (130, 1529670), (150, 1325714), (156, 1274725), (195, 1019780), (260, 764835), (300, 662857), (325, 611868), (390, 509890), (650, 305934), (780, 254945), (975, 203956), (1300, 152967), (1950, 101978), (3900, 50989)]