249920355

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{3847}}^1$

素因数の和:3987

約数の個数: 32

約数和(自身を含む): 412259328

約数和(自身を除く): 162338973

約数列:

[1, 3, 5, 15, 61, 71, 183, 213, 305, 355, 915, 1065, 3847, 4331, 11541, 12993, 19235, 21655, 57705, 64965, 234667, 273137, 704001, 819411, 1173335, 1365685, 3520005, 4097055, 16661357, 49984071, 83306785, 249920355]

約数ペア:

[(1, 249920355), (3, 83306785), (5, 49984071), (15, 16661357), (61, 4097055), (71, 3520005), (183, 1365685), (213, 1173335), (305, 819411), (355, 704001), (915, 273137), (1065, 234667), (3847, 64965), (4331, 57705), (11541, 21655), (12993, 19235)]