25678215

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 80

約数和(自身を含む): 50181120

約数和(自身を除く): 24502905

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 47, 57, 71, 81, 95, 135, 141, 171, 213, 235, 285, 355, 405, 423, 513, 639, 705, 855, 893, 1065, 1269, 1349, 1539, 1917, 2115, 2565, 2679, 3195, 3337, 3807, 4047, 4465, 5751, 6345, 6745, 7695, 8037, 9585, 10011, 12141, 13395, 16685, 19035, 20235, 24111, 28755, 30033, 36423, 40185, 50055, 60705, 63403, 72333, 90099, 109269, 120555, 150165, 182115, 190209, 270297, 317015, 361665, 450495, 546345, 570627, 951045, 1351485, 1711881, 2853135, 5135643, 8559405, 25678215]

約数ペア:

[(1, 25678215), (3, 8559405), (5, 5135643), (9, 2853135), (15, 1711881), (19, 1351485), (27, 951045), (45, 570627), (47, 546345), (57, 450495), (71, 361665), (81, 317015), (95, 270297), (135, 190209), (141, 182115), (171, 150165), (213, 120555), (235, 109269), (285, 90099), (355, 72333), (405, 63403), (423, 60705), (513, 50055), (639, 40185), (705, 36423), (855, 30033), (893, 28755), (1065, 24111), (1269, 20235), (1349, 19035), (1539, 16685), (1917, 13395), (2115, 12141), (2565, 10011), (2679, 9585), (3195, 8037), (3337, 7695), (3807, 6745), (4047, 6345), (4465, 5751)]