156938680

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{22679}}^1$

素因数の和:22863

約数の個数: 32

約数和(自身を含む): 355168800

約数和(自身を除く): 198230120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 22679, 45358, 90716, 113395, 181432, 226790, 453580, 907160, 3923467, 7846934, 15693868, 19617335, 31387736, 39234670, 78469340, 156938680]

約数ペア:

[(1, 156938680), (2, 78469340), (4, 39234670), (5, 31387736), (8, 19617335), (10, 15693868), (20, 7846934), (40, 3923467), (173, 907160), (346, 453580), (692, 226790), (865, 181432), (1384, 113395), (1730, 90716), (3460, 45358), (6920, 22679)]