28813785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:159

約数の個数: 128

約数和(自身を含む): 65802240

約数和(自身を除く): 36988455

約数列:

[1, 3, 5, 7, 11, 13, 15, 19, 21, 33, 35, 39, 55, 57, 65, 77, 91, 95, 101, 105, 133, 143, 165, 195, 209, 231, 247, 273, 285, 303, 385, 399, 429, 455, 505, 627, 665, 707, 715, 741, 1001, 1045, 1111, 1155, 1235, 1313, 1365, 1463, 1515, 1729, 1919, 1995, 2121, 2145, 2717, 3003, 3135, 3333, 3535, 3705, 3939, 4389, 5005, 5187, 5555, 5757, 6565, 7315, 7777, 8151, 8645, 9191, 9595, 10605, 13433, 13585, 14443, 15015, 16665, 19019, 19695, 21109, 21945, 23331, 24947, 25935, 27573, 28785, 38885, 40299, 40755, 43329, 45955, 57057, 63327, 67165, 72215, 74841, 95095, 101101, 105545, 116655, 124735, 137865, 147763, 174629, 201495, 216645, 274417, 285285, 303303, 316635, 374205, 443289, 505505, 523887, 738815, 823251, 873145, 1372085, 1516515, 1920919, 2216445, 2619435, 4116255, 5762757, 9604595, 28813785]

約数ペア:

[(1, 28813785), (3, 9604595), (5, 5762757), (7, 4116255), (11, 2619435), (13, 2216445), (15, 1920919), (19, 1516515), (21, 1372085), (33, 873145), (35, 823251), (39, 738815), (55, 523887), (57, 505505), (65, 443289), (77, 374205), (91, 316635), (95, 303303), (101, 285285), (105, 274417), (133, 216645), (143, 201495), (165, 174629), (195, 147763), (209, 137865), (231, 124735), (247, 116655), (273, 105545), (285, 101101), (303, 95095), (385, 74841), (399, 72215), (429, 67165), (455, 63327), (505, 57057), (627, 45955), (665, 43329), (707, 40755), (715, 40299), (741, 38885), (1001, 28785), (1045, 27573), (1111, 25935), (1155, 24947), (1235, 23331), (1313, 21945), (1365, 21109), (1463, 19695), (1515, 19019), (1729, 16665), (1919, 15015), (1995, 14443), (2121, 13585), (2145, 13433), (2717, 10605), (3003, 9595), (3135, 9191), (3333, 8645), (3535, 8151), (3705, 7777), (3939, 7315), (4389, 6565), (5005, 5757), (5187, 5555)]