12687345

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 25676352

約数和(自身を除く): 12989007

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 71, 95, 99, 165, 171, 209, 213, 285, 355, 361, 495, 627, 639, 781, 855, 1045, 1065, 1083, 1349, 1805, 1881, 2343, 3135, 3195, 3249, 3905, 3971, 4047, 5415, 6745, 7029, 9405, 11715, 11913, 12141, 14839, 16245, 19855, 20235, 25631, 35145, 35739, 44517, 59565, 60705, 74195, 76893, 128155, 133551, 178695, 222585, 230679, 281941, 384465, 667755, 845823, 1153395, 1409705, 2537469, 4229115, 12687345]

約数ペア:

[(1, 12687345), (3, 4229115), (5, 2537469), (9, 1409705), (11, 1153395), (15, 845823), (19, 667755), (33, 384465), (45, 281941), (55, 230679), (57, 222585), (71, 178695), (95, 133551), (99, 128155), (165, 76893), (171, 74195), (209, 60705), (213, 59565), (285, 44517), (355, 35739), (361, 35145), (495, 25631), (627, 20235), (639, 19855), (781, 16245), (855, 14839), (1045, 12141), (1065, 11913), (1083, 11715), (1349, 9405), (1805, 7029), (1881, 6745), (2343, 5415), (3135, 4047), (3195, 3971), (3249, 3905)]