20155275

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 42092544

約数和(自身を除く): 21937269

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 67, 75, 105, 175, 191, 201, 225, 315, 335, 469, 525, 573, 603, 955, 1005, 1337, 1407, 1575, 1675, 1719, 2345, 2865, 3015, 4011, 4221, 4775, 5025, 6685, 7035, 8595, 11725, 12033, 12797, 14325, 15075, 20055, 21105, 33425, 35175, 38391, 42975, 60165, 63985, 89579, 100275, 105525, 115173, 191955, 268737, 300825, 319925, 447895, 575865, 806211, 959775, 1343685, 2239475, 2879325, 4031055, 6718425, 20155275]

約数ペア:

[(1, 20155275), (3, 6718425), (5, 4031055), (7, 2879325), (9, 2239475), (15, 1343685), (21, 959775), (25, 806211), (35, 575865), (45, 447895), (63, 319925), (67, 300825), (75, 268737), (105, 191955), (175, 115173), (191, 105525), (201, 100275), (225, 89579), (315, 63985), (335, 60165), (469, 42975), (525, 38391), (573, 35175), (603, 33425), (955, 21105), (1005, 20055), (1337, 15075), (1407, 14325), (1575, 12797), (1675, 12033), (1719, 11725), (2345, 8595), (2865, 7035), (3015, 6685), (4011, 5025), (4221, 4775)]