131289215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 171974016

約数和(自身を除く): 40684801

約数列:

[1, 5, 17, 53, 85, 151, 193, 265, 755, 901, 965, 2567, 3281, 4505, 8003, 10229, 12835, 16405, 29143, 40015, 51145, 136051, 145715, 173893, 495431, 680255, 869465, 1544579, 2477155, 7722895, 26257843, 131289215]

約数ペア:

[(1, 131289215), (5, 26257843), (17, 7722895), (53, 2477155), (85, 1544579), (151, 869465), (193, 680255), (265, 495431), (755, 173893), (901, 145715), (965, 136051), (2567, 51145), (3281, 40015), (4505, 29143), (8003, 16405), (10229, 12835)]