689718867

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 980812800

約数和(自身を除く): 291093933

約数列:

[1, 3, 19, 57, 197, 239, 257, 591, 717, 771, 3743, 4541, 4883, 11229, 13623, 14649, 47083, 50629, 61423, 141249, 151887, 184269, 894577, 961951, 1167037, 2683731, 2885853, 3501111, 12100331, 36300993, 229906289, 689718867]

約数ペア:

[(1, 689718867), (3, 229906289), (19, 36300993), (57, 12100331), (197, 3501111), (239, 2885853), (257, 2683731), (591, 1167037), (717, 961951), (771, 894577), (3743, 184269), (4541, 151887), (4883, 141249), (11229, 61423), (13623, 50629), (14649, 47083)]