254403880

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{39019}}^1$

素因数の和:39193

約数の個数: 32

約数和(自身を含む): 575935200

約数和(自身を除く): 321531320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 39019, 78038, 156076, 195095, 312152, 390190, 780380, 1560760, 6360097, 12720194, 25440388, 31800485, 50880776, 63600970, 127201940, 254403880]

約数ペア:

[(1, 254403880), (2, 127201940), (4, 63600970), (5, 50880776), (8, 31800485), (10, 25440388), (20, 12720194), (40, 6360097), (163, 1560760), (326, 780380), (652, 390190), (815, 312152), (1304, 195095), (1630, 156076), (3260, 78038), (6520, 39019)]