1640554498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{225289}}^1$

素因数の和:225633

約数の個数: 16

約数和(自身を含む): 2692666080

約数和(自身を除く): 1052111582

約数列:

[1, 2, 11, 22, 331, 662, 3641, 7282, 225289, 450578, 2478179, 4956358, 74570659, 149141318, 820277249, 1640554498]

約数ペア:

[(1, 1640554498), (2, 820277249), (11, 149141318), (22, 74570659), (331, 4956358), (662, 2478179), (3641, 450578), (7282, 225289)]