66162220

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{5113}}^1$

素因数の和:5769

約数の個数: 24

約数和(自身を含む): 139182624

約数和(自身を除く): 73020404

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 5113, 6470, 10226, 12940, 20452, 25565, 51130, 102260, 3308111, 6616222, 13232444, 16540555, 33081110, 66162220]

約数ペア:

[(1, 66162220), (2, 33081110), (4, 16540555), (5, 13232444), (10, 6616222), (20, 3308111), (647, 102260), (1294, 51130), (2588, 25565), (3235, 20452), (5113, 12940), (6470, 10226)]