2742980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 6168960

約数和(自身を除く): 3425980

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 67, 89, 92, 115, 134, 178, 230, 268, 335, 356, 445, 460, 670, 890, 1340, 1541, 1780, 2047, 3082, 4094, 5963, 6164, 7705, 8188, 10235, 11926, 15410, 20470, 23852, 29815, 30820, 40940, 59630, 119260, 137149, 274298, 548596, 685745, 1371490, 2742980]

約数ペア:

[(1, 2742980), (2, 1371490), (4, 685745), (5, 548596), (10, 274298), (20, 137149), (23, 119260), (46, 59630), (67, 40940), (89, 30820), (92, 29815), (115, 23852), (134, 20470), (178, 15410), (230, 11926), (268, 10235), (335, 8188), (356, 7705), (445, 6164), (460, 5963), (670, 4094), (890, 3082), (1340, 2047), (1541, 1780)]