20070175

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 28569600

約数和(自身を除く): 8499425

約数列:

[1, 5, 19, 25, 29, 31, 47, 95, 145, 155, 235, 475, 551, 589, 725, 775, 893, 899, 1175, 1363, 1457, 2755, 2945, 4465, 4495, 6815, 7285, 13775, 14725, 17081, 22325, 22475, 25897, 27683, 34075, 36425, 42253, 85405, 129485, 138415, 211265, 427025, 647425, 692075, 802807, 1056325, 4014035, 20070175]

約数ペア:

[(1, 20070175), (5, 4014035), (19, 1056325), (25, 802807), (29, 692075), (31, 647425), (47, 427025), (95, 211265), (145, 138415), (155, 129485), (235, 85405), (475, 42253), (551, 36425), (589, 34075), (725, 27683), (775, 25897), (893, 22475), (899, 22325), (1175, 17081), (1363, 14725), (1457, 13775), (2755, 7285), (2945, 6815), (4465, 4495)]