78891680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{70439}}^1$

素因数の和:70461

約数の個数: 48

約数和(自身を含む): 213010560

約数和(自身を除く): 134118880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 70439, 140878, 281756, 352195, 493073, 563512, 704390, 986146, 1127024, 1408780, 1972292, 2254048, 2465365, 2817560, 3944584, 4930730, 5635120, 7889168, 9861460, 11270240, 15778336, 19722920, 39445840, 78891680]

約数ペア:

[(1, 78891680), (2, 39445840), (4, 19722920), (5, 15778336), (7, 11270240), (8, 9861460), (10, 7889168), (14, 5635120), (16, 4930730), (20, 3944584), (28, 2817560), (32, 2465365), (35, 2254048), (40, 1972292), (56, 1408780), (70, 1127024), (80, 986146), (112, 704390), (140, 563512), (160, 493073), (224, 352195), (280, 281756), (560, 140878), (1120, 70439)]