28476820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{547}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 63524160

約数和(自身を除く): 35047340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 274, 380, 547, 548, 685, 1094, 1370, 2188, 2603, 2735, 2740, 5206, 5470, 10393, 10412, 10940, 13015, 20786, 26030, 41572, 51965, 52060, 74939, 103930, 149878, 207860, 299756, 374695, 749390, 1423841, 1498780, 2847682, 5695364, 7119205, 14238410, 28476820]

約数ペア:

[(1, 28476820), (2, 14238410), (4, 7119205), (5, 5695364), (10, 2847682), (19, 1498780), (20, 1423841), (38, 749390), (76, 374695), (95, 299756), (137, 207860), (190, 149878), (274, 103930), (380, 74939), (547, 52060), (548, 51965), (685, 41572), (1094, 26030), (1370, 20786), (2188, 13015), (2603, 10940), (2735, 10412), (2740, 10393), (5206, 5470)]