28687972

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{179}}^1\times {\mathrm{389}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 51105600

約数和(自身を除く): 22417628

約数列:

[1, 2, 4, 103, 179, 206, 358, 389, 412, 716, 778, 1556, 18437, 36874, 40067, 69631, 73748, 80134, 139262, 160268, 278524, 7171993, 14343986, 28687972]

約数ペア:

[(1, 28687972), (2, 14343986), (4, 7171993), (103, 278524), (179, 160268), (206, 139262), (358, 80134), (389, 73748), (412, 69631), (716, 40067), (778, 36874), (1556, 18437)]