254709280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{227419}}^1$

素因数の和:227441

約数の個数: 48

約数和(自身を含む): 687718080

約数和(自身を除く): 433008800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 227419, 454838, 909676, 1137095, 1591933, 1819352, 2274190, 3183866, 3638704, 4548380, 6367732, 7277408, 7959665, 9096760, 12735464, 15919330, 18193520, 25470928, 31838660, 36387040, 50941856, 63677320, 127354640, 254709280]

約数ペア:

[(1, 254709280), (2, 127354640), (4, 63677320), (5, 50941856), (7, 36387040), (8, 31838660), (10, 25470928), (14, 18193520), (16, 15919330), (20, 12735464), (28, 9096760), (32, 7959665), (35, 7277408), (40, 6367732), (56, 4548380), (70, 3638704), (80, 3183866), (112, 2274190), (140, 1819352), (160, 1591933), (224, 1137095), (280, 909676), (560, 454838), (1120, 227419)]