208031420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{3407}}^1$

素因数の和:3530

約数の個数: 48

約数和(自身を含む): 453454848

約数和(自身を除く): 245423428

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 215, 284, 355, 430, 710, 860, 1420, 3053, 3407, 6106, 6814, 12212, 13628, 15265, 17035, 30530, 34070, 61060, 68140, 146501, 241897, 293002, 483794, 586004, 732505, 967588, 1209485, 1465010, 2418970, 2930020, 4837940, 10401571, 20803142, 41606284, 52007855, 104015710, 208031420]

約数ペア:

[(1, 208031420), (2, 104015710), (4, 52007855), (5, 41606284), (10, 20803142), (20, 10401571), (43, 4837940), (71, 2930020), (86, 2418970), (142, 1465010), (172, 1209485), (215, 967588), (284, 732505), (355, 586004), (430, 483794), (710, 293002), (860, 241897), (1420, 146501), (3053, 68140), (3407, 61060), (6106, 34070), (6814, 30530), (12212, 17035), (13628, 15265)]