2938780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 6773760

約数和(自身を除く): 3834980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 127, 130, 178, 254, 260, 356, 445, 508, 635, 890, 1157, 1270, 1651, 1780, 2314, 2540, 3302, 4628, 5785, 6604, 8255, 11303, 11570, 16510, 22606, 23140, 33020, 45212, 56515, 113030, 146939, 226060, 293878, 587756, 734695, 1469390, 2938780]

約数ペア:

[(1, 2938780), (2, 1469390), (4, 734695), (5, 587756), (10, 293878), (13, 226060), (20, 146939), (26, 113030), (52, 56515), (65, 45212), (89, 33020), (127, 23140), (130, 22606), (178, 16510), (254, 11570), (260, 11303), (356, 8255), (445, 6604), (508, 5785), (635, 4628), (890, 3302), (1157, 2540), (1270, 2314), (1651, 1780)]