281320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 682920

約数和(自身を除く): 401600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 541, 1082, 2164, 2705, 4328, 5410, 7033, 10820, 14066, 21640, 28132, 35165, 56264, 70330, 140660, 281320]

約数ペア:

[(1, 281320), (2, 140660), (4, 70330), (5, 56264), (8, 35165), (10, 28132), (13, 21640), (20, 14066), (26, 10820), (40, 7033), (52, 5410), (65, 4328), (104, 2705), (130, 2164), (260, 1082), (520, 541)]