16809420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{997}}^1$

素因数の和:1290

約数の個数: 48

約数和(自身を含む): 47281248

約数和(自身を除く): 30471828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 281, 562, 843, 997, 1124, 1405, 1686, 1994, 2810, 2991, 3372, 3988, 4215, 4985, 5620, 5982, 8430, 9970, 11964, 14955, 16860, 19940, 29910, 59820, 280157, 560314, 840471, 1120628, 1400785, 1680942, 2801570, 3361884, 4202355, 5603140, 8404710, 16809420]

約数ペア:

[(1, 16809420), (2, 8404710), (3, 5603140), (4, 4202355), (5, 3361884), (6, 2801570), (10, 1680942), (12, 1400785), (15, 1120628), (20, 840471), (30, 560314), (60, 280157), (281, 59820), (562, 29910), (843, 19940), (997, 16860), (1124, 14955), (1405, 11964), (1686, 9970), (1994, 8430), (2810, 5982), (2991, 5620), (3372, 4985), (3988, 4215)]