12578715

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 23003136

約数和(自身を除く): 10424421

約数列:

[1, 3, 5, 9, 15, 31, 45, 71, 93, 127, 155, 213, 279, 355, 381, 465, 635, 639, 1065, 1143, 1395, 1905, 2201, 3195, 3937, 5715, 6603, 9017, 11005, 11811, 19685, 19809, 27051, 33015, 35433, 45085, 59055, 81153, 99045, 135255, 177165, 279527, 405765, 838581, 1397635, 2515743, 4192905, 12578715]

約数ペア:

[(1, 12578715), (3, 4192905), (5, 2515743), (9, 1397635), (15, 838581), (31, 405765), (45, 279527), (71, 177165), (93, 135255), (127, 99045), (155, 81153), (213, 59055), (279, 45085), (355, 35433), (381, 33015), (465, 27051), (635, 19809), (639, 19685), (1065, 11811), (1143, 11005), (1395, 9017), (1905, 6603), (2201, 5715), (3195, 3937)]