18420325

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1367}}^1$

素因数の和:1402

約数の個数: 36

約数和(自身を含む): 29007072

約数和(自身を除く): 10586747

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 175, 245, 275, 385, 539, 1225, 1367, 1925, 2695, 6835, 9569, 13475, 15037, 34175, 47845, 66983, 75185, 105259, 239225, 334915, 375925, 526295, 736813, 1674575, 2631475, 3684065, 18420325]

約数ペア:

[(1, 18420325), (5, 3684065), (7, 2631475), (11, 1674575), (25, 736813), (35, 526295), (49, 375925), (55, 334915), (77, 239225), (175, 105259), (245, 75185), (275, 66983), (385, 47845), (539, 34175), (1225, 15037), (1367, 13475), (1925, 9569), (2695, 6835)]