2138520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 6531840

約数和(自身を除く): 4393320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 251, 284, 355, 426, 502, 568, 710, 753, 852, 1004, 1065, 1255, 1420, 1506, 1704, 2008, 2130, 2510, 2840, 3012, 3765, 4260, 5020, 6024, 7530, 8520, 10040, 15060, 17821, 30120, 35642, 53463, 71284, 89105, 106926, 142568, 178210, 213852, 267315, 356420, 427704, 534630, 712840, 1069260, 2138520]

約数ペア:

[(1, 2138520), (2, 1069260), (3, 712840), (4, 534630), (5, 427704), (6, 356420), (8, 267315), (10, 213852), (12, 178210), (15, 142568), (20, 106926), (24, 89105), (30, 71284), (40, 53463), (60, 35642), (71, 30120), (120, 17821), (142, 15060), (213, 10040), (251, 8520), (284, 7530), (355, 6024), (426, 5020), (502, 4260), (568, 3765), (710, 3012), (753, 2840), (852, 2510), (1004, 2130), (1065, 2008), (1255, 1704), (1420, 1506)]