77268640

素因数分解:

$2^5\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1459}}^1$

素因数の和:1805

約数の個数: 48

約数和(自身を含む): 183224160

約数和(自身を除く): 105955520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 331, 662, 1324, 1459, 1655, 2648, 2918, 3310, 5296, 5836, 6620, 7295, 10592, 11672, 13240, 14590, 23344, 26480, 29180, 46688, 52960, 58360, 116720, 233440, 482929, 965858, 1931716, 2414645, 3863432, 4829290, 7726864, 9658580, 15453728, 19317160, 38634320, 77268640]

約数ペア:

[(1, 77268640), (2, 38634320), (4, 19317160), (5, 15453728), (8, 9658580), (10, 7726864), (16, 4829290), (20, 3863432), (32, 2414645), (40, 1931716), (80, 965858), (160, 482929), (331, 233440), (662, 116720), (1324, 58360), (1459, 52960), (1655, 46688), (2648, 29180), (2918, 26480), (3310, 23344), (5296, 14590), (5836, 13240), (6620, 11672), (7295, 10592)]