42080020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1013}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 92671488

約数和(自身を除く): 50591468

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 620, 670, 1013, 1340, 2026, 2077, 4052, 4154, 5065, 8308, 10130, 10385, 20260, 20770, 31403, 41540, 62806, 67871, 125612, 135742, 157015, 271484, 314030, 339355, 628060, 678710, 1357420, 2104001, 4208002, 8416004, 10520005, 21040010, 42080020]

約数ペア:

[(1, 42080020), (2, 21040010), (4, 10520005), (5, 8416004), (10, 4208002), (20, 2104001), (31, 1357420), (62, 678710), (67, 628060), (124, 339355), (134, 314030), (155, 271484), (268, 157015), (310, 135742), (335, 125612), (620, 67871), (670, 62806), (1013, 41540), (1340, 31403), (2026, 20770), (2077, 20260), (4052, 10385), (4154, 10130), (5065, 8308)]