13128780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31259}}^1$

素因数の和:31278

約数の個数: 48

約数和(自身を含む): 42013440

約数和(自身を除く): 28884660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 31259, 62518, 93777, 125036, 156295, 187554, 218813, 312590, 375108, 437626, 468885, 625180, 656439, 875252, 937770, 1094065, 1312878, 1875540, 2188130, 2625756, 3282195, 4376260, 6564390, 13128780]

約数ペア:

[(1, 13128780), (2, 6564390), (3, 4376260), (4, 3282195), (5, 2625756), (6, 2188130), (7, 1875540), (10, 1312878), (12, 1094065), (14, 937770), (15, 875252), (20, 656439), (21, 625180), (28, 468885), (30, 437626), (35, 375108), (42, 312590), (60, 218813), (70, 187554), (84, 156295), (105, 125036), (140, 93777), (210, 62518), (420, 31259)]