669346520

素因数分解:

$2^3\times 5^1\times {\mathrm{2957}}^1\times {\mathrm{5659}}^1$

素因数の和:8627

約数の個数: 32

約数和(自身を含む): 1506805200

約数和(自身を除く): 837458680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2957, 5659, 5914, 11318, 11828, 14785, 22636, 23656, 28295, 29570, 45272, 56590, 59140, 113180, 118280, 226360, 16733663, 33467326, 66934652, 83668315, 133869304, 167336630, 334673260, 669346520]

約数ペア:

[(1, 669346520), (2, 334673260), (4, 167336630), (5, 133869304), (8, 83668315), (10, 66934652), (20, 33467326), (40, 16733663), (2957, 226360), (5659, 118280), (5914, 113180), (11318, 59140), (11828, 56590), (14785, 45272), (22636, 29570), (23656, 28295)]