217467380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{836413}}^1$

素因数の和:836435

約数の個数: 24

約数和(自身を含む): 491811432

約数和(自身を除く): 274344052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 836413, 1672826, 3345652, 4182065, 8364130, 10873369, 16728260, 21746738, 43493476, 54366845, 108733690, 217467380]

約数ペア:

[(1, 217467380), (2, 108733690), (4, 54366845), (5, 43493476), (10, 21746738), (13, 16728260), (20, 10873369), (26, 8364130), (52, 4182065), (65, 3345652), (130, 1672826), (260, 836413)]