19245195

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 80

約数和(自身を含む): 37810080

約数和(自身を除く): 18564885

約数列:

[1, 3, 5, 9, 15, 19, 27, 41, 45, 57, 61, 81, 95, 123, 135, 171, 183, 205, 285, 305, 369, 405, 513, 549, 615, 779, 855, 915, 1107, 1159, 1539, 1647, 1845, 2337, 2501, 2565, 2745, 3321, 3477, 3895, 4941, 5535, 5795, 7011, 7503, 7695, 8235, 10431, 11685, 12505, 16605, 17385, 21033, 22509, 24705, 31293, 35055, 37515, 47519, 52155, 63099, 67527, 93879, 105165, 112545, 142557, 156465, 202581, 237595, 315495, 337635, 427671, 469395, 712785, 1012905, 1283013, 2138355, 3849039, 6415065, 19245195]

約数ペア:

[(1, 19245195), (3, 6415065), (5, 3849039), (9, 2138355), (15, 1283013), (19, 1012905), (27, 712785), (41, 469395), (45, 427671), (57, 337635), (61, 315495), (81, 237595), (95, 202581), (123, 156465), (135, 142557), (171, 112545), (183, 105165), (205, 93879), (285, 67527), (305, 63099), (369, 52155), (405, 47519), (513, 37515), (549, 35055), (615, 31293), (779, 24705), (855, 22509), (915, 21033), (1107, 17385), (1159, 16605), (1539, 12505), (1647, 11685), (1845, 10431), (2337, 8235), (2501, 7695), (2565, 7503), (2745, 7011), (3321, 5795), (3477, 5535), (3895, 4941)]