20342455

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 9517385

約数列:

[1, 5, 7, 17, 35, 85, 119, 179, 191, 595, 895, 955, 1253, 1337, 3043, 3247, 6265, 6685, 15215, 16235, 21301, 22729, 34189, 106505, 113645, 170945, 239323, 581213, 1196615, 2906065, 4068491, 20342455]

約数ペア:

[(1, 20342455), (5, 4068491), (7, 2906065), (17, 1196615), (35, 581213), (85, 239323), (119, 170945), (179, 113645), (191, 106505), (595, 34189), (895, 22729), (955, 21301), (1253, 16235), (1337, 15215), (3043, 6685), (3247, 6265)]