61275620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{997}}^1$

素因数の和:1452

約数の個数: 48

約数和(自身を含む): 147544320

約数和(自身を除く): 86268700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 439, 878, 997, 1756, 1994, 2195, 3073, 3988, 4390, 4985, 6146, 6979, 8780, 9970, 12292, 13958, 15365, 19940, 27916, 30730, 34895, 61460, 69790, 139580, 437683, 875366, 1750732, 2188415, 3063781, 4376830, 6127562, 8753660, 12255124, 15318905, 30637810, 61275620]

約数ペア:

[(1, 61275620), (2, 30637810), (4, 15318905), (5, 12255124), (7, 8753660), (10, 6127562), (14, 4376830), (20, 3063781), (28, 2188415), (35, 1750732), (70, 875366), (140, 437683), (439, 139580), (878, 69790), (997, 61460), (1756, 34895), (1994, 30730), (2195, 27916), (3073, 19940), (3988, 15365), (4390, 13958), (4985, 12292), (6146, 9970), (6979, 8780)]