1291228540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{542533}}^1$

素因数の和:542566

約数の個数: 48

約数和(自身を含む): 3281245632

約数和(自身を除く): 1990017092

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 542533, 1085066, 2170132, 2712665, 3797731, 5425330, 7595462, 9223061, 10850660, 15190924, 18446122, 18988655, 36892244, 37977310, 46115305, 64561427, 75954620, 92230610, 129122854, 184461220, 258245708, 322807135, 645614270, 1291228540]

約数ペア:

[(1, 1291228540), (2, 645614270), (4, 322807135), (5, 258245708), (7, 184461220), (10, 129122854), (14, 92230610), (17, 75954620), (20, 64561427), (28, 46115305), (34, 37977310), (35, 36892244), (68, 18988655), (70, 18446122), (85, 15190924), (119, 10850660), (140, 9223061), (170, 7595462), (238, 5425330), (340, 3797731), (476, 2712665), (595, 2170132), (1190, 1085066), (2380, 542533)]