39985505

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 57231360

約数和(自身を除く): 17245855

約数列:

[1, 5, 7, 31, 35, 137, 155, 217, 269, 685, 959, 1085, 1345, 1883, 4247, 4795, 8339, 9415, 21235, 29729, 36853, 41695, 58373, 148645, 184265, 257971, 291865, 1142443, 1289855, 5712215, 7997101, 39985505]

約数ペア:

[(1, 39985505), (5, 7997101), (7, 5712215), (31, 1289855), (35, 1142443), (137, 291865), (155, 257971), (217, 184265), (269, 148645), (685, 58373), (959, 41695), (1085, 36853), (1345, 29729), (1883, 21235), (4247, 9415), (4795, 8339)]