40500005

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 61979904

約数和(自身を除く): 21479899

約数列:

[1, 5, 7, 13, 35, 41, 65, 91, 167, 169, 205, 287, 455, 533, 835, 845, 1169, 1183, 1435, 2171, 2665, 3731, 5845, 5915, 6847, 6929, 10855, 15197, 18655, 28223, 34235, 34645, 47929, 48503, 75985, 89011, 141115, 197561, 239645, 242515, 445055, 623077, 987805, 1157143, 3115385, 5785715, 8100001, 40500005]

約数ペア:

[(1, 40500005), (5, 8100001), (7, 5785715), (13, 3115385), (35, 1157143), (41, 987805), (65, 623077), (91, 445055), (167, 242515), (169, 239645), (205, 197561), (287, 141115), (455, 89011), (533, 75985), (835, 48503), (845, 47929), (1169, 34645), (1183, 34235), (1435, 28223), (2171, 18655), (2665, 15197), (3731, 10855), (5845, 6929), (5915, 6847)]