65990480

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1879}}^1$

素因数の和:2331

約数の個数: 40

約数和(自身を含む): 153859200

約数和(自身を除く): 87868720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1756, 1879, 2195, 3512, 3758, 4390, 7024, 7516, 8780, 9395, 15032, 17560, 18790, 30064, 35120, 37580, 75160, 150320, 824881, 1649762, 3299524, 4124405, 6599048, 8248810, 13198096, 16497620, 32995240, 65990480]

約数ペア:

[(1, 65990480), (2, 32995240), (4, 16497620), (5, 13198096), (8, 8248810), (10, 6599048), (16, 4124405), (20, 3299524), (40, 1649762), (80, 824881), (439, 150320), (878, 75160), (1756, 37580), (1879, 35120), (2195, 30064), (3512, 18790), (3758, 17560), (4390, 15032), (7024, 9395), (7516, 8780)]