19400995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 26671680

約数和(自身を除く): 7270685

約数列:

[1, 5, 17, 19, 41, 85, 95, 205, 293, 323, 697, 779, 1465, 1615, 3485, 3895, 4981, 5567, 12013, 13243, 24905, 27835, 60065, 66215, 94639, 204221, 228247, 473195, 1021105, 1141235, 3880199, 19400995]

約数ペア:

[(1, 19400995), (5, 3880199), (17, 1141235), (19, 1021105), (41, 473195), (85, 228247), (95, 204221), (205, 94639), (293, 66215), (323, 60065), (697, 27835), (779, 24905), (1465, 13243), (1615, 12013), (3485, 5567), (3895, 4981)]