208548935

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 315408384

約数和(自身を除く): 106859449

約数列:

[1, 5, 7, 23, 31, 35, 61, 115, 137, 155, 161, 217, 305, 427, 685, 713, 805, 959, 1085, 1403, 1891, 2135, 3151, 3565, 4247, 4795, 4991, 7015, 8357, 9455, 9821, 13237, 15755, 21235, 22057, 24955, 29729, 41785, 43493, 49105, 58499, 66185, 97681, 110285, 148645, 192211, 217465, 259067, 292495, 304451, 488405, 683767, 961055, 1295335, 1345477, 1522255, 1813469, 3418835, 5958541, 6727385, 9067345, 29792705, 41709787, 208548935]

約数ペア:

[(1, 208548935), (5, 41709787), (7, 29792705), (23, 9067345), (31, 6727385), (35, 5958541), (61, 3418835), (115, 1813469), (137, 1522255), (155, 1345477), (161, 1295335), (217, 961055), (305, 683767), (427, 488405), (685, 304451), (713, 292495), (805, 259067), (959, 217465), (1085, 192211), (1403, 148645), (1891, 110285), (2135, 97681), (3151, 66185), (3565, 58499), (4247, 49105), (4795, 43493), (4991, 41785), (7015, 29729), (8357, 24955), (9455, 22057), (9821, 21235), (13237, 15755)]