331345040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{318601}}^1$

素因数の和:318627

約数の個数: 40

約数和(自身を含む): 829639608

約数和(自身を除く): 498294568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 318601, 637202, 1274404, 1593005, 2548808, 3186010, 4141813, 5097616, 6372020, 8283626, 12744040, 16567252, 20709065, 25488080, 33134504, 41418130, 66269008, 82836260, 165672520, 331345040]

約数ペア:

[(1, 331345040), (2, 165672520), (4, 82836260), (5, 66269008), (8, 41418130), (10, 33134504), (13, 25488080), (16, 20709065), (20, 16567252), (26, 12744040), (40, 8283626), (52, 6372020), (65, 5097616), (80, 4141813), (104, 3186010), (130, 2548808), (208, 1593005), (260, 1274404), (520, 637202), (1040, 318601)]