129263960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{65951}}^1$

素因数の和:65976

約数の個数: 48

約数和(自身を含む): 338333760

約数和(自身を除く): 209069800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 65951, 131902, 263804, 329755, 461657, 527608, 659510, 923314, 1319020, 1846628, 2308285, 2638040, 3231599, 3693256, 4616570, 6463198, 9233140, 12926396, 16157995, 18466280, 25852792, 32315990, 64631980, 129263960]

約数ペア:

[(1, 129263960), (2, 64631980), (4, 32315990), (5, 25852792), (7, 18466280), (8, 16157995), (10, 12926396), (14, 9233140), (20, 6463198), (28, 4616570), (35, 3693256), (40, 3231599), (49, 2638040), (56, 2308285), (70, 1846628), (98, 1319020), (140, 923314), (196, 659510), (245, 527608), (280, 461657), (392, 329755), (490, 263804), (980, 131902), (1960, 65951)]