161831988

素因数分解:

$2^2\times 3^2\times {\mathrm{641}}^1\times {\mathrm{7013}}^1$

素因数の和:7664

約数の個数: 36

約数和(自身を含む): 409771908

約数和(自身を除く): 247939920

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 641, 1282, 1923, 2564, 3846, 5769, 7013, 7692, 11538, 14026, 21039, 23076, 28052, 42078, 63117, 84156, 126234, 252468, 4495333, 8990666, 13485999, 17981332, 26971998, 40457997, 53943996, 80915994, 161831988]

約数ペア:

[(1, 161831988), (2, 80915994), (3, 53943996), (4, 40457997), (6, 26971998), (9, 17981332), (12, 13485999), (18, 8990666), (36, 4495333), (641, 252468), (1282, 126234), (1923, 84156), (2564, 63117), (3846, 42078), (5769, 28052), (7013, 23076), (7692, 21039), (11538, 14026)]