81209780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{3331}}^1$

素因数の和:3416

約数の個数: 48

約数和(自身を含む): 181367424

約数和(自身を除く): 100157644

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 53, 92, 106, 115, 212, 230, 265, 460, 530, 1060, 1219, 2438, 3331, 4876, 6095, 6662, 12190, 13324, 16655, 24380, 33310, 66620, 76613, 153226, 176543, 306452, 353086, 383065, 706172, 766130, 882715, 1532260, 1765430, 3530860, 4060489, 8120978, 16241956, 20302445, 40604890, 81209780]

約数ペア:

[(1, 81209780), (2, 40604890), (4, 20302445), (5, 16241956), (10, 8120978), (20, 4060489), (23, 3530860), (46, 1765430), (53, 1532260), (92, 882715), (106, 766130), (115, 706172), (212, 383065), (230, 353086), (265, 306452), (460, 176543), (530, 153226), (1060, 76613), (1219, 66620), (2438, 33310), (3331, 24380), (4876, 16655), (6095, 13324), (6662, 12190)]