1721000840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{30931}}^1$

素因数の和:31062

約数の個数: 64

約数和(自身を含む): 4209226560

約数和(自身を除く): 2488225720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 107, 130, 214, 260, 428, 520, 535, 856, 1070, 1391, 2140, 2782, 4280, 5564, 6955, 11128, 13910, 27820, 30931, 55640, 61862, 123724, 154655, 247448, 309310, 402103, 618620, 804206, 1237240, 1608412, 2010515, 3216824, 3309617, 4021030, 6619234, 8042060, 13238468, 16084120, 16548085, 26476936, 33096170, 43025021, 66192340, 86050042, 132384680, 172100084, 215125105, 344200168, 430250210, 860500420, 1721000840]

約数ペア:

[(1, 1721000840), (2, 860500420), (4, 430250210), (5, 344200168), (8, 215125105), (10, 172100084), (13, 132384680), (20, 86050042), (26, 66192340), (40, 43025021), (52, 33096170), (65, 26476936), (104, 16548085), (107, 16084120), (130, 13238468), (214, 8042060), (260, 6619234), (428, 4021030), (520, 3309617), (535, 3216824), (856, 2010515), (1070, 1608412), (1391, 1237240), (2140, 804206), (2782, 618620), (4280, 402103), (5564, 309310), (6955, 247448), (11128, 154655), (13910, 123724), (27820, 61862), (30931, 55640)]