81074175

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1697}}^1$

素因数の和:1737

約数の個数: 72

約数和(自身を含む): 168020496

約数和(自身を除く): 86946321

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 49, 65, 75, 91, 105, 147, 175, 195, 245, 273, 325, 455, 525, 637, 735, 975, 1225, 1365, 1697, 1911, 2275, 3185, 3675, 5091, 6825, 8485, 9555, 11879, 15925, 22061, 25455, 35637, 42425, 47775, 59395, 66183, 83153, 110305, 127275, 154427, 178185, 249459, 296975, 330915, 415765, 463281, 551525, 772135, 890925, 1080989, 1247295, 1654575, 2078825, 2316405, 3242967, 3860675, 5404945, 6236475, 11582025, 16214835, 27024725, 81074175]

約数ペア:

[(1, 81074175), (3, 27024725), (5, 16214835), (7, 11582025), (13, 6236475), (15, 5404945), (21, 3860675), (25, 3242967), (35, 2316405), (39, 2078825), (49, 1654575), (65, 1247295), (75, 1080989), (91, 890925), (105, 772135), (147, 551525), (175, 463281), (195, 415765), (245, 330915), (273, 296975), (325, 249459), (455, 178185), (525, 154427), (637, 127275), (735, 110305), (975, 83153), (1225, 66183), (1365, 59395), (1697, 47775), (1911, 42425), (2275, 35637), (3185, 25455), (3675, 22061), (5091, 15925), (6825, 11879), (8485, 9555)]