40497778

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{17471}}^1$

素因数の和:17553

約数の個数: 16

約数和(自身を含む): 64995840

約数和(自身を除く): 24498062

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 17471, 34942, 331949, 663898, 1065731, 2131462, 20248889, 40497778]

約数ペア:

[(1, 40497778), (2, 20248889), (19, 2131462), (38, 1065731), (61, 663898), (122, 331949), (1159, 34942), (2318, 17471)]