2499960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 7620480

約数和(自身を除く): 5120520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 249, 251, 332, 415, 498, 502, 664, 753, 830, 996, 1004, 1245, 1255, 1506, 1660, 1992, 2008, 2490, 2510, 3012, 3320, 3765, 4980, 5020, 6024, 7530, 9960, 10040, 15060, 20833, 30120, 41666, 62499, 83332, 104165, 124998, 166664, 208330, 249996, 312495, 416660, 499992, 624990, 833320, 1249980, 2499960]

約数ペア:

[(1, 2499960), (2, 1249980), (3, 833320), (4, 624990), (5, 499992), (6, 416660), (8, 312495), (10, 249996), (12, 208330), (15, 166664), (20, 124998), (24, 104165), (30, 83332), (40, 62499), (60, 41666), (83, 30120), (120, 20833), (166, 15060), (249, 10040), (251, 9960), (332, 7530), (415, 6024), (498, 5020), (502, 4980), (664, 3765), (753, 3320), (830, 3012), (996, 2510), (1004, 2490), (1245, 2008), (1255, 1992), (1506, 1660)]