18540130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:419

約数の個数: 48

約数和(自身を含む): 39230136

約数和(自身を除く): 20690006

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 157, 241, 245, 314, 482, 490, 785, 1099, 1205, 1570, 1687, 2198, 2410, 3374, 5495, 7693, 8435, 10990, 11809, 15386, 16870, 23618, 37837, 38465, 59045, 75674, 76930, 118090, 189185, 264859, 378370, 529718, 1324295, 1854013, 2648590, 3708026, 9270065, 18540130]

約数ペア:

[(1, 18540130), (2, 9270065), (5, 3708026), (7, 2648590), (10, 1854013), (14, 1324295), (35, 529718), (49, 378370), (70, 264859), (98, 189185), (157, 118090), (241, 76930), (245, 75674), (314, 59045), (482, 38465), (490, 37837), (785, 23618), (1099, 16870), (1205, 15386), (1570, 11809), (1687, 10990), (2198, 8435), (2410, 7693), (3374, 5495)]