349444420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1344017}}^1$

素因数の和:1344039

約数の個数: 24

約数和(自身を含む): 790282584

約数和(自身を除く): 440838164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1344017, 2688034, 5376068, 6720085, 13440170, 17472221, 26880340, 34944442, 69888884, 87361105, 174722210, 349444420]

約数ペア:

[(1, 349444420), (2, 174722210), (4, 87361105), (5, 69888884), (10, 34944442), (13, 26880340), (20, 17472221), (26, 13440170), (52, 6720085), (65, 5376068), (130, 2688034), (260, 1344017)]