79878620

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{6173}}^1$

素因数の和:6829

約数の個数: 24

約数和(自身を含む): 168031584

約数和(自身を除く): 88152964

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 6173, 6470, 12346, 12940, 24692, 30865, 61730, 123460, 3993931, 7987862, 15975724, 19969655, 39939310, 79878620]

約数ペア:

[(1, 79878620), (2, 39939310), (4, 19969655), (5, 15975724), (10, 7987862), (20, 3993931), (647, 123460), (1294, 61730), (2588, 30865), (3235, 24692), (6173, 12940), (6470, 12346)]