18390190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2887}}^1$

素因数の和:2921

約数の個数: 48

約数和(自身を含む): 41483232

約数和(自身を除く): 23093042

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 2887, 3185, 5774, 6370, 14435, 20209, 28870, 37531, 40418, 75062, 101045, 141463, 187655, 202090, 262717, 282926, 375310, 525434, 707315, 1313585, 1414630, 1839019, 2627170, 3678038, 9195095, 18390190]

約数ペア:

[(1, 18390190), (2, 9195095), (5, 3678038), (7, 2627170), (10, 1839019), (13, 1414630), (14, 1313585), (26, 707315), (35, 525434), (49, 375310), (65, 282926), (70, 262717), (91, 202090), (98, 187655), (130, 141463), (182, 101045), (245, 75062), (455, 40418), (490, 37531), (637, 28870), (910, 20209), (1274, 14435), (2887, 6370), (3185, 5774)]