209210925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2131}}^1$

素因数の和:2179

約数の個数: 96

約数和(自身を含む): 456827904

約数和(自身を除く): 247616979

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 25, 33, 35, 51, 55, 75, 77, 85, 105, 119, 165, 175, 187, 231, 255, 275, 357, 385, 425, 525, 561, 595, 825, 935, 1155, 1275, 1309, 1785, 1925, 2131, 2805, 2975, 3927, 4675, 5775, 6393, 6545, 8925, 10655, 14025, 14917, 19635, 23441, 31965, 32725, 36227, 44751, 53275, 70323, 74585, 98175, 108681, 117205, 159825, 164087, 181135, 223755, 253589, 351615, 372925, 398497, 492261, 543405, 586025, 760767, 820435, 905675, 1118775, 1195491, 1267945, 1758075, 1992485, 2461305, 2717025, 2789479, 3803835, 4102175, 5977455, 6339725, 8368437, 9962425, 12306525, 13947395, 19019175, 29887275, 41842185, 69736975, 209210925]

約数ペア:

[(1, 209210925), (3, 69736975), (5, 41842185), (7, 29887275), (11, 19019175), (15, 13947395), (17, 12306525), (21, 9962425), (25, 8368437), (33, 6339725), (35, 5977455), (51, 4102175), (55, 3803835), (75, 2789479), (77, 2717025), (85, 2461305), (105, 1992485), (119, 1758075), (165, 1267945), (175, 1195491), (187, 1118775), (231, 905675), (255, 820435), (275, 760767), (357, 586025), (385, 543405), (425, 492261), (525, 398497), (561, 372925), (595, 351615), (825, 253589), (935, 223755), (1155, 181135), (1275, 164087), (1309, 159825), (1785, 117205), (1925, 108681), (2131, 98175), (2805, 74585), (2975, 70323), (3927, 53275), (4675, 44751), (5775, 36227), (6393, 32725), (6545, 31965), (8925, 23441), (10655, 19635), (14025, 14917)]