1245505940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{81619}}^1$

素因数の和:81744

約数の個数: 48

約数和(自身を含む): 3016675200

約数和(自身を除く): 1771169260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 7630, 15260, 81619, 163238, 326476, 408095, 571333, 816190, 1142666, 1632380, 2285332, 2856665, 5713330, 8896471, 11426660, 17792942, 35585884, 44482355, 62275297, 88964710, 124550594, 177929420, 249101188, 311376485, 622752970, 1245505940]

約数ペア:

[(1, 1245505940), (2, 622752970), (4, 311376485), (5, 249101188), (7, 177929420), (10, 124550594), (14, 88964710), (20, 62275297), (28, 44482355), (35, 35585884), (70, 17792942), (109, 11426660), (140, 8896471), (218, 5713330), (436, 2856665), (545, 2285332), (763, 1632380), (1090, 1142666), (1526, 816190), (2180, 571333), (3052, 408095), (3815, 326476), (7630, 163238), (15260, 81619)]