197718680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{38921}}^1$

素因数の和:39059

約数の個数: 32

約数和(自身を含む): 448381440

約数和(自身を除く): 250662760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 38921, 77842, 155684, 194605, 311368, 389210, 778420, 1556840, 4942967, 9885934, 19771868, 24714835, 39543736, 49429670, 98859340, 197718680]

約数ペア:

[(1, 197718680), (2, 98859340), (4, 49429670), (5, 39543736), (8, 24714835), (10, 19771868), (20, 9885934), (40, 4942967), (127, 1556840), (254, 778420), (508, 389210), (635, 311368), (1016, 194605), (1270, 155684), (2540, 77842), (5080, 38921)]