77884940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{556321}}^1$

素因数の和:556337

約数の個数: 24

約数和(自身を含む): 186924192

約数和(自身を除く): 109039252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 556321, 1112642, 2225284, 2781605, 3894247, 5563210, 7788494, 11126420, 15576988, 19471235, 38942470, 77884940]

約数ペア:

[(1, 77884940), (2, 38942470), (4, 19471235), (5, 15576988), (7, 11126420), (10, 7788494), (14, 5563210), (20, 3894247), (28, 2781605), (35, 2225284), (70, 1112642), (140, 556321)]