871981240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1676887}}^1$

素因数の和:1676911

約数の個数: 32

約数和(自身を含む): 2112878880

約数和(自身を除く): 1240897640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1676887, 3353774, 6707548, 8384435, 13415096, 16768870, 21799531, 33537740, 43599062, 67075480, 87198124, 108997655, 174396248, 217995310, 435990620, 871981240]

約数ペア:

[(1, 871981240), (2, 435990620), (4, 217995310), (5, 174396248), (8, 108997655), (10, 87198124), (13, 67075480), (20, 43599062), (26, 33537740), (40, 21799531), (52, 16768870), (65, 13415096), (104, 8384435), (130, 6707548), (260, 3353774), (520, 1676887)]