520065455

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{36871}}^1$

素因数の和:36927

約数の個数: 32

約数和(自身を含む): 792895488

約数和(自身を除く): 272830033

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 2015, 2821, 14105, 36871, 184355, 258097, 479323, 1143001, 1290485, 2396615, 3355261, 5715005, 8001007, 14859013, 16776305, 40005035, 74295065, 104013091, 520065455]

約数ペア:

[(1, 520065455), (5, 104013091), (7, 74295065), (13, 40005035), (31, 16776305), (35, 14859013), (65, 8001007), (91, 5715005), (155, 3355261), (217, 2396615), (403, 1290485), (455, 1143001), (1085, 479323), (2015, 258097), (2821, 184355), (14105, 36871)]