218163540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{997}}^1$

素因数の和:1537

約数の個数: 96

約数和(自身を含む): 700164864

約数和(自身を除く): 482001324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 521, 997, 1042, 1563, 1994, 2084, 2605, 2991, 3126, 3647, 3988, 4985, 5210, 5982, 6252, 6979, 7294, 7815, 9970, 10420, 10941, 11964, 13958, 14588, 14955, 15630, 18235, 19940, 20937, 21882, 27916, 29910, 31260, 34895, 36470, 41874, 43764, 54705, 59820, 69790, 72940, 83748, 104685, 109410, 139580, 209370, 218820, 418740, 519437, 1038874, 1558311, 2077748, 2597185, 3116622, 3636059, 5194370, 6233244, 7272118, 7791555, 10388740, 10908177, 14544236, 15583110, 18180295, 21816354, 31166220, 36360590, 43632708, 54540885, 72721180, 109081770, 218163540]

約数ペア:

[(1, 218163540), (2, 109081770), (3, 72721180), (4, 54540885), (5, 43632708), (6, 36360590), (7, 31166220), (10, 21816354), (12, 18180295), (14, 15583110), (15, 14544236), (20, 10908177), (21, 10388740), (28, 7791555), (30, 7272118), (35, 6233244), (42, 5194370), (60, 3636059), (70, 3116622), (84, 2597185), (105, 2077748), (140, 1558311), (210, 1038874), (420, 519437), (521, 418740), (997, 218820), (1042, 209370), (1563, 139580), (1994, 109410), (2084, 104685), (2605, 83748), (2991, 72940), (3126, 69790), (3647, 59820), (3988, 54705), (4985, 43764), (5210, 41874), (5982, 36470), (6252, 34895), (6979, 31260), (7294, 29910), (7815, 27916), (9970, 21882), (10420, 20937), (10941, 19940), (11964, 18235), (13958, 15630), (14588, 14955)]