18010020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:469

約数の個数: 96

約数和(自身を含む): 58238208

約数和(自身を除く): 40228188

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 137, 140, 210, 274, 313, 411, 420, 548, 626, 685, 822, 939, 959, 1252, 1370, 1565, 1644, 1878, 1918, 2055, 2191, 2740, 2877, 3130, 3756, 3836, 4110, 4382, 4695, 4795, 5754, 6260, 6573, 8220, 8764, 9390, 9590, 10955, 11508, 13146, 14385, 18780, 19180, 21910, 26292, 28770, 32865, 42881, 43820, 57540, 65730, 85762, 128643, 131460, 171524, 214405, 257286, 300167, 428810, 514572, 600334, 643215, 857620, 900501, 1200668, 1286430, 1500835, 1801002, 2572860, 3001670, 3602004, 4502505, 6003340, 9005010, 18010020]

約数ペア:

[(1, 18010020), (2, 9005010), (3, 6003340), (4, 4502505), (5, 3602004), (6, 3001670), (7, 2572860), (10, 1801002), (12, 1500835), (14, 1286430), (15, 1200668), (20, 900501), (21, 857620), (28, 643215), (30, 600334), (35, 514572), (42, 428810), (60, 300167), (70, 257286), (84, 214405), (105, 171524), (137, 131460), (140, 128643), (210, 85762), (274, 65730), (313, 57540), (411, 43820), (420, 42881), (548, 32865), (626, 28770), (685, 26292), (822, 21910), (939, 19180), (959, 18780), (1252, 14385), (1370, 13146), (1565, 11508), (1644, 10955), (1878, 9590), (1918, 9390), (2055, 8764), (2191, 8220), (2740, 6573), (2877, 6260), (3130, 5754), (3756, 4795), (3836, 4695), (4110, 4382)]