20789190

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2081}}^1$

素因数の和:2134

約数の個数: 64

約数和(自身を含む): 56963520

約数和(自身を除く): 36174330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 2081, 3330, 4162, 4995, 6243, 9990, 10405, 12486, 18729, 20810, 31215, 37458, 56187, 62430, 76997, 93645, 112374, 153994, 187290, 230991, 280935, 384985, 461982, 561870, 692973, 769970, 1154955, 1385946, 2078919, 2309910, 3464865, 4157838, 6929730, 10394595, 20789190]

約数ペア:

[(1, 20789190), (2, 10394595), (3, 6929730), (5, 4157838), (6, 3464865), (9, 2309910), (10, 2078919), (15, 1385946), (18, 1154955), (27, 769970), (30, 692973), (37, 561870), (45, 461982), (54, 384985), (74, 280935), (90, 230991), (111, 187290), (135, 153994), (185, 112374), (222, 93645), (270, 76997), (333, 62430), (370, 56187), (555, 37458), (666, 31215), (999, 20810), (1110, 18729), (1665, 12486), (1998, 10405), (2081, 9990), (3330, 6243), (4162, 4995)]