15810280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 38102400

約数和(自身を除く): 22292120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 293, 355, 380, 568, 586, 710, 760, 1172, 1349, 1420, 1465, 2344, 2698, 2840, 2930, 5396, 5567, 5860, 6745, 10792, 11134, 11720, 13490, 20803, 22268, 26980, 27835, 41606, 44536, 53960, 55670, 83212, 104015, 111340, 166424, 208030, 222680, 395257, 416060, 790514, 832120, 1581028, 1976285, 3162056, 3952570, 7905140, 15810280]

約数ペア:

[(1, 15810280), (2, 7905140), (4, 3952570), (5, 3162056), (8, 1976285), (10, 1581028), (19, 832120), (20, 790514), (38, 416060), (40, 395257), (71, 222680), (76, 208030), (95, 166424), (142, 111340), (152, 104015), (190, 83212), (284, 55670), (293, 53960), (355, 44536), (380, 41606), (568, 27835), (586, 26980), (710, 22268), (760, 20803), (1172, 13490), (1349, 11720), (1420, 11134), (1465, 10792), (2344, 6745), (2698, 5860), (2840, 5567), (2930, 5396)]