320650484

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:178

約数の個数: 144

約数和(自身を含む): 755048448

約数和(自身を除く): 434397964

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 43, 44, 62, 71, 77, 86, 121, 124, 142, 154, 172, 217, 242, 284, 301, 308, 341, 434, 473, 484, 497, 602, 682, 781, 847, 868, 946, 994, 1204, 1333, 1364, 1562, 1694, 1892, 1988, 2201, 2387, 2666, 3053, 3124, 3311, 3388, 3751, 4402, 4774, 5203, 5332, 5467, 6106, 6622, 7502, 8591, 8804, 9331, 9548, 10406, 10934, 12212, 13244, 14663, 15004, 15407, 17182, 18662, 20812, 21371, 21868, 24211, 26257, 29326, 30814, 33583, 34364, 36421, 37324, 42742, 48422, 52514, 58652, 60137, 61628, 67166, 72842, 85484, 94643, 96844, 102641, 105028, 120274, 134332, 145684, 161293, 169477, 189286, 205282, 235081, 240548, 266321, 322586, 338954, 369413, 378572, 410564, 470162, 532642, 645172, 662501, 677908, 738826, 940324, 1041073, 1065284, 1129051, 1325002, 1477652, 1864247, 2082146, 2258102, 2585891, 2650004, 3728494, 4164292, 4516204, 5171782, 7287511, 7456988, 10343564, 11451803, 14575022, 22903606, 29150044, 45807212, 80162621, 160325242, 320650484]

約数ペア:

[(1, 320650484), (2, 160325242), (4, 80162621), (7, 45807212), (11, 29150044), (14, 22903606), (22, 14575022), (28, 11451803), (31, 10343564), (43, 7456988), (44, 7287511), (62, 5171782), (71, 4516204), (77, 4164292), (86, 3728494), (121, 2650004), (124, 2585891), (142, 2258102), (154, 2082146), (172, 1864247), (217, 1477652), (242, 1325002), (284, 1129051), (301, 1065284), (308, 1041073), (341, 940324), (434, 738826), (473, 677908), (484, 662501), (497, 645172), (602, 532642), (682, 470162), (781, 410564), (847, 378572), (868, 369413), (946, 338954), (994, 322586), (1204, 266321), (1333, 240548), (1364, 235081), (1562, 205282), (1694, 189286), (1892, 169477), (1988, 161293), (2201, 145684), (2387, 134332), (2666, 120274), (3053, 105028), (3124, 102641), (3311, 96844), (3388, 94643), (3751, 85484), (4402, 72842), (4774, 67166), (5203, 61628), (5332, 60137), (5467, 58652), (6106, 52514), (6622, 48422), (7502, 42742), (8591, 37324), (8804, 36421), (9331, 34364), (9548, 33583), (10406, 30814), (10934, 29326), (12212, 26257), (13244, 24211), (14663, 21868), (15004, 21371), (15407, 20812), (17182, 18662)]