18739360

素因数分解:

$2^5\times 5^1\times {\mathrm{173}}^1\times {\mathrm{677}}^1$

素因数の和:865

約数の個数: 48

約数和(自身を含む): 44593416

約数和(自身を除く): 25854056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 173, 346, 677, 692, 865, 1354, 1384, 1730, 2708, 2768, 3385, 3460, 5416, 5536, 6770, 6920, 10832, 13540, 13840, 21664, 27080, 27680, 54160, 108320, 117121, 234242, 468484, 585605, 936968, 1171210, 1873936, 2342420, 3747872, 4684840, 9369680, 18739360]

約数ペア:

[(1, 18739360), (2, 9369680), (4, 4684840), (5, 3747872), (8, 2342420), (10, 1873936), (16, 1171210), (20, 936968), (32, 585605), (40, 468484), (80, 234242), (160, 117121), (173, 108320), (346, 54160), (677, 27680), (692, 27080), (865, 21664), (1354, 13840), (1384, 13540), (1730, 10832), (2708, 6920), (2768, 6770), (3385, 5536), (3460, 5416)]