66978680

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{9679}}^1$

素因数の和:9863

約数の個数: 32

約数和(自身を含む): 151588800

約数和(自身を除く): 84610120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 9679, 19358, 38716, 48395, 77432, 96790, 193580, 387160, 1674467, 3348934, 6697868, 8372335, 13395736, 16744670, 33489340, 66978680]

約数ペア:

[(1, 66978680), (2, 33489340), (4, 16744670), (5, 13395736), (8, 8372335), (10, 6697868), (20, 3348934), (40, 1674467), (173, 387160), (346, 193580), (692, 96790), (865, 77432), (1384, 48395), (1730, 38716), (3460, 19358), (6920, 9679)]