16418840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13241}}^1$

素因数の和:13283

約数の個数: 32

約数和(自身を含む): 38136960

約数和(自身を除く): 21718120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 13241, 26482, 52964, 66205, 105928, 132410, 264820, 410471, 529640, 820942, 1641884, 2052355, 3283768, 4104710, 8209420, 16418840]

約数ペア:

[(1, 16418840), (2, 8209420), (4, 4104710), (5, 3283768), (8, 2052355), (10, 1641884), (20, 820942), (31, 529640), (40, 410471), (62, 264820), (124, 132410), (155, 105928), (248, 66205), (310, 52964), (620, 26482), (1240, 13241)]