20130915

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 38167200

約数和(自身を除く): 18036285

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 61, 105, 147, 183, 245, 305, 427, 449, 735, 915, 1281, 1347, 2135, 2245, 2989, 3143, 6405, 6735, 8967, 9429, 14945, 15715, 22001, 27389, 44835, 47145, 66003, 82167, 110005, 136945, 191723, 330015, 410835, 575169, 958615, 1342061, 2875845, 4026183, 6710305, 20130915]

約数ペア:

[(1, 20130915), (3, 6710305), (5, 4026183), (7, 2875845), (15, 1342061), (21, 958615), (35, 575169), (49, 410835), (61, 330015), (105, 191723), (147, 136945), (183, 110005), (245, 82167), (305, 66003), (427, 47145), (449, 44835), (735, 27389), (915, 22001), (1281, 15715), (1347, 14945), (2135, 9429), (2245, 8967), (2989, 6735), (3143, 6405)]