28579915

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2731}}^1$

素因数の和:2779

約数の個数: 32

約数和(自身を含む): 44061696

約数和(自身を除く): 15481781

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 2093, 2731, 10465, 13655, 19117, 35503, 62813, 95585, 177515, 248521, 314065, 439691, 816569, 1242605, 2198455, 4082845, 5715983, 28579915]

約数ペア:

[(1, 28579915), (5, 5715983), (7, 4082845), (13, 2198455), (23, 1242605), (35, 816569), (65, 439691), (91, 314065), (115, 248521), (161, 177515), (299, 95585), (455, 62813), (805, 35503), (1495, 19117), (2093, 13655), (2731, 10465)]