18144145

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 24284160

約数和(自身を除く): 6140015

約数列:

[1, 5, 19, 31, 61, 95, 101, 155, 305, 505, 589, 1159, 1891, 1919, 2945, 3131, 5795, 6161, 9455, 9595, 15655, 30805, 35929, 59489, 117059, 179645, 190991, 297445, 585295, 954955, 3628829, 18144145]

約数ペア:

[(1, 18144145), (5, 3628829), (19, 954955), (31, 585295), (61, 297445), (95, 190991), (101, 179645), (155, 117059), (305, 59489), (505, 35929), (589, 30805), (1159, 15655), (1891, 9595), (1919, 9455), (2945, 6161), (3131, 5795)]