155678875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 229132800

約数和(自身を除く): 73453925

約数列:

[1, 5, 11, 19, 25, 55, 59, 95, 101, 125, 209, 275, 295, 475, 505, 649, 1045, 1111, 1121, 1375, 1475, 1919, 2375, 2525, 3245, 5225, 5555, 5605, 5959, 7375, 9595, 12331, 12625, 16225, 21109, 26125, 27775, 28025, 29795, 47975, 61655, 65549, 81125, 105545, 113221, 138875, 140125, 148975, 239875, 308275, 327745, 527725, 566105, 744875, 1245431, 1541375, 1638725, 2638625, 2830525, 6227155, 8193625, 14152625, 31135775, 155678875]

約数ペア:

[(1, 155678875), (5, 31135775), (11, 14152625), (19, 8193625), (25, 6227155), (55, 2830525), (59, 2638625), (95, 1638725), (101, 1541375), (125, 1245431), (209, 744875), (275, 566105), (295, 527725), (475, 327745), (505, 308275), (649, 239875), (1045, 148975), (1111, 140125), (1121, 138875), (1375, 113221), (1475, 105545), (1919, 81125), (2375, 65549), (2525, 61655), (3245, 47975), (5225, 29795), (5555, 28025), (5605, 27775), (5959, 26125), (7375, 21109), (9595, 16225), (12331, 12625)]