201212380

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{189823}}^1$

素因数の和:189885

約数の個数: 24

約数和(自身を含む): 430520832

約数和(自身を除く): 229308452

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 189823, 379646, 759292, 949115, 1898230, 3796460, 10060619, 20121238, 40242476, 50303095, 100606190, 201212380]

約数ペア:

[(1, 201212380), (2, 100606190), (4, 50303095), (5, 40242476), (10, 20121238), (20, 10060619), (53, 3796460), (106, 1898230), (212, 949115), (265, 759292), (530, 379646), (1060, 189823)]