1305850

素因数分解:

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

素因数の和:80

約数の個数: 72

約数和(自身を含む): 3116988

約数和(自身を除く): 1811138

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 41, 49, 50, 65, 70, 82, 91, 98, 130, 175, 182, 205, 245, 287, 325, 350, 410, 455, 490, 533, 574, 637, 650, 910, 1025, 1066, 1225, 1274, 1435, 2009, 2050, 2275, 2450, 2665, 2870, 3185, 3731, 4018, 4550, 5330, 6370, 7175, 7462, 10045, 13325, 14350, 15925, 18655, 20090, 26117, 26650, 31850, 37310, 50225, 52234, 93275, 100450, 130585, 186550, 261170, 652925, 1305850]

約数ペア:

[(1, 1305850), (2, 652925), (5, 261170), (7, 186550), (10, 130585), (13, 100450), (14, 93275), (25, 52234), (26, 50225), (35, 37310), (41, 31850), (49, 26650), (50, 26117), (65, 20090), (70, 18655), (82, 15925), (91, 14350), (98, 13325), (130, 10045), (175, 7462), (182, 7175), (205, 6370), (245, 5330), (287, 4550), (325, 4018), (350, 3731), (410, 3185), (455, 2870), (490, 2665), (533, 2450), (574, 2275), (637, 2050), (650, 2009), (910, 1435), (1025, 1274), (1066, 1225)]