31668455

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 48684384

約数和(自身を除く): 17015929

約数列:

[1, 5, 7, 13, 35, 49, 61, 65, 91, 163, 245, 305, 427, 455, 637, 793, 815, 1141, 2119, 2135, 2989, 3185, 3965, 5551, 5705, 7987, 9943, 10595, 14833, 14945, 27755, 38857, 39935, 49715, 69601, 74165, 103831, 129259, 194285, 348005, 487207, 519155, 646295, 904813, 2436035, 4524065, 6333691, 31668455]

約数ペア:

[(1, 31668455), (5, 6333691), (7, 4524065), (13, 2436035), (35, 904813), (49, 646295), (61, 519155), (65, 487207), (91, 348005), (163, 194285), (245, 129259), (305, 103831), (427, 74165), (455, 69601), (637, 49715), (793, 39935), (815, 38857), (1141, 27755), (2119, 14945), (2135, 14833), (2989, 10595), (3185, 9943), (3965, 7987), (5551, 5705)]