8520005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 11854080

約数和(自身を除く): 3334075

約数列:

[1, 5, 13, 23, 41, 65, 115, 139, 205, 299, 533, 695, 943, 1495, 1807, 2665, 3197, 4715, 5699, 9035, 12259, 15985, 28495, 41561, 61295, 74087, 131077, 207805, 370435, 655385, 1704001, 8520005]

約数ペア:

[(1, 8520005), (5, 1704001), (13, 655385), (23, 370435), (41, 207805), (65, 131077), (115, 74087), (139, 61295), (205, 41561), (299, 28495), (533, 15985), (695, 12259), (943, 9035), (1495, 5699), (1807, 4715), (2665, 3197)]