20173935985

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{541}}^1\times {\mathrm{36739}}^1$

素因数の和:37321

約数の個数: 32

約数和(自身を含む): 28674835200

約数和(自身を除く): 8500899215

約数列:

[1, 5, 7, 29, 35, 145, 203, 541, 1015, 2705, 3787, 15689, 18935, 36739, 78445, 109823, 183695, 257173, 549115, 1065431, 1285865, 5327155, 7458017, 19875799, 37290085, 99378995, 139130593, 576398171, 695652965, 2881990855, 4034787197, 20173935985]

約数ペア:

[(1, 20173935985), (5, 4034787197), (7, 2881990855), (29, 695652965), (35, 576398171), (145, 139130593), (203, 99378995), (541, 37290085), (1015, 19875799), (2705, 7458017), (3787, 5327155), (15689, 1285865), (18935, 1065431), (36739, 549115), (78445, 257173), (109823, 183695)]