1640129385

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{661}}^1\times {\mathrm{1993}}^1$

素因数の和:2745

約数の個数: 32

約数和(自身を含む): 2661176448

約数和(自身を除く): 1021047063

約数列:

[1, 3, 5, 15, 83, 249, 415, 661, 1245, 1983, 1993, 3305, 5979, 9915, 9965, 29895, 54863, 164589, 165419, 274315, 496257, 822945, 827095, 1317373, 2481285, 3952119, 6586865, 19760595, 109341959, 328025877, 546709795, 1640129385]

約数ペア:

[(1, 1640129385), (3, 546709795), (5, 328025877), (15, 109341959), (83, 19760595), (249, 6586865), (415, 3952119), (661, 2481285), (1245, 1317373), (1983, 827095), (1993, 822945), (3305, 496257), (5979, 274315), (9915, 165419), (9965, 164589), (29895, 54863)]