204517740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{486947}}^1$

素因数の和:486966

約数の個数: 48

約数和(自身を含む): 654458112

約数和(自身を除く): 449940372

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, 486947, 973894, 1460841, 1947788, 2434735, 2921682, 3408629, 4869470, 5843364, 6817258, 7304205, 9738940, 10225887, 13634516, 14608410, 17043145, 20451774, 29216820, 34086290, 40903548, 51129435, 68172580, 102258870, 204517740]

約数ペア:

[(1, 204517740), (2, 102258870), (3, 68172580), (4, 51129435), (5, 40903548), (6, 34086290), (7, 29216820), (10, 20451774), (12, 17043145), (14, 14608410), (15, 13634516), (20, 10225887), (21, 9738940), (28, 7304205), (30, 6817258), (35, 5843364), (42, 4869470), (60, 3408629), (70, 2921682), (84, 2434735), (105, 1947788), (140, 1460841), (210, 973894), (420, 486947)]