81689998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{439}}^1$

素因数の和:892

約数の個数: 32

約数和(自身を含む): 140374080

約数和(自身を除く): 58684082

約数列:

[1, 2, 13, 17, 26, 34, 221, 421, 439, 442, 842, 878, 5473, 5707, 7157, 7463, 10946, 11414, 14314, 14926, 93041, 97019, 184819, 186082, 194038, 369638, 2402647, 3141923, 4805294, 6283846, 40844999, 81689998]

約数ペア:

[(1, 81689998), (2, 40844999), (13, 6283846), (17, 4805294), (26, 3141923), (34, 2402647), (221, 369638), (421, 194038), (439, 186082), (442, 184819), (842, 97019), (878, 93041), (5473, 14926), (5707, 14314), (7157, 11414), (7463, 10946)]