78757840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140639}}^1$

素因数の和:140659

約数の個数: 40

約数和(自身を含む): 209272320

約数和(自身を除く): 130514480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140639, 281278, 562556, 703195, 984473, 1125112, 1406390, 1968946, 2250224, 2812780, 3937892, 4922365, 5625560, 7875784, 9844730, 11251120, 15751568, 19689460, 39378920, 78757840]

約数ペア:

[(1, 78757840), (2, 39378920), (4, 19689460), (5, 15751568), (7, 11251120), (8, 9844730), (10, 7875784), (14, 5625560), (16, 4922365), (20, 3937892), (28, 2812780), (35, 2250224), (40, 1968946), (56, 1406390), (70, 1125112), (80, 984473), (112, 703195), (140, 562556), (280, 281278), (560, 140639)]