28502565

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 96

約数和(自身を含む): 60520320

約数和(自身を除く): 32017755

約数列:

[1, 3, 5, 7, 13, 15, 19, 21, 35, 39, 49, 57, 65, 91, 95, 105, 133, 147, 157, 195, 245, 247, 273, 285, 399, 455, 471, 637, 665, 735, 741, 785, 931, 1099, 1235, 1365, 1729, 1911, 1995, 2041, 2355, 2793, 2983, 3185, 3297, 3705, 4655, 5187, 5495, 6123, 7693, 8645, 8949, 9555, 10205, 12103, 13965, 14287, 14915, 16485, 20881, 23079, 25935, 30615, 36309, 38465, 38779, 42861, 44745, 60515, 62643, 71435, 100009, 104405, 115395, 116337, 146167, 181545, 193895, 214305, 271453, 300027, 313215, 438501, 500045, 581685, 730835, 814359, 1357265, 1500135, 1900171, 2192505, 4071795, 5700513, 9500855, 28502565]

約数ペア:

[(1, 28502565), (3, 9500855), (5, 5700513), (7, 4071795), (13, 2192505), (15, 1900171), (19, 1500135), (21, 1357265), (35, 814359), (39, 730835), (49, 581685), (57, 500045), (65, 438501), (91, 313215), (95, 300027), (105, 271453), (133, 214305), (147, 193895), (157, 181545), (195, 146167), (245, 116337), (247, 115395), (273, 104405), (285, 100009), (399, 71435), (455, 62643), (471, 60515), (637, 44745), (665, 42861), (735, 38779), (741, 38465), (785, 36309), (931, 30615), (1099, 25935), (1235, 23079), (1365, 20881), (1729, 16485), (1911, 14915), (1995, 14287), (2041, 13965), (2355, 12103), (2793, 10205), (2983, 9555), (3185, 8949), (3297, 8645), (3705, 7693), (4655, 6123), (5187, 5495)]