19813675

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 30355200

約数和(自身を除く): 10541525

約数列:

[1, 5, 7, 19, 25, 35, 59, 95, 101, 133, 175, 295, 413, 475, 505, 665, 707, 1121, 1475, 1919, 2065, 2525, 3325, 3535, 5605, 5959, 7847, 9595, 10325, 13433, 17675, 28025, 29795, 39235, 41713, 47975, 67165, 113221, 148975, 196175, 208565, 335825, 566105, 792547, 1042825, 2830525, 3962735, 19813675]

約数ペア:

[(1, 19813675), (5, 3962735), (7, 2830525), (19, 1042825), (25, 792547), (35, 566105), (59, 335825), (95, 208565), (101, 196175), (133, 148975), (175, 113221), (295, 67165), (413, 47975), (475, 41713), (505, 39235), (665, 29795), (707, 28025), (1121, 17675), (1475, 13433), (1919, 10325), (2065, 9595), (2525, 7847), (3325, 5959), (3535, 5605)]