12495920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8221}}^1$

素因数の和:8253

約数の個数: 40

約数和(自身を含む): 30585840

約数和(自身を除く): 18089920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 8221, 16442, 32884, 41105, 65768, 82210, 131536, 156199, 164420, 312398, 328840, 624796, 657680, 780995, 1249592, 1561990, 2499184, 3123980, 6247960, 12495920]

約数ペア:

[(1, 12495920), (2, 6247960), (4, 3123980), (5, 2499184), (8, 1561990), (10, 1249592), (16, 780995), (19, 657680), (20, 624796), (38, 328840), (40, 312398), (76, 164420), (80, 156199), (95, 131536), (152, 82210), (190, 65768), (304, 41105), (380, 32884), (760, 16442), (1520, 8221)]