256548708

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:368

約数の個数: 144

約数和(自身を含む): 736270080

約数和(自身を除く): 479721372

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 79, 81, 108, 117, 156, 158, 162, 234, 237, 243, 257, 316, 324, 351, 468, 474, 486, 514, 702, 711, 771, 948, 972, 1027, 1028, 1053, 1404, 1422, 1542, 2054, 2106, 2133, 2313, 2844, 3081, 3084, 3159, 3341, 4108, 4212, 4266, 4626, 6162, 6318, 6399, 6682, 6939, 8532, 9243, 9252, 10023, 12324, 12636, 12798, 13364, 13878, 18486, 19197, 20046, 20303, 20817, 25596, 27729, 27756, 30069, 36972, 38394, 40092, 40606, 41634, 55458, 60138, 60909, 62451, 76788, 81212, 83187, 83268, 90207, 110916, 120276, 121818, 124902, 166374, 180414, 182727, 243636, 249561, 249804, 263939, 270621, 332748, 360828, 365454, 499122, 527878, 541242, 548181, 730908, 791817, 811863, 998244, 1055756, 1082484, 1096362, 1583634, 1623726, 1644543, 2192724, 2375451, 3167268, 3247452, 3289086, 4750902, 4933629, 6578172, 7126353, 9501804, 9867258, 14252706, 19734516, 21379059, 28505412, 42758118, 64137177, 85516236, 128274354, 256548708]

約数ペア:

[(1, 256548708), (2, 128274354), (3, 85516236), (4, 64137177), (6, 42758118), (9, 28505412), (12, 21379059), (13, 19734516), (18, 14252706), (26, 9867258), (27, 9501804), (36, 7126353), (39, 6578172), (52, 4933629), (54, 4750902), (78, 3289086), (79, 3247452), (81, 3167268), (108, 2375451), (117, 2192724), (156, 1644543), (158, 1623726), (162, 1583634), (234, 1096362), (237, 1082484), (243, 1055756), (257, 998244), (316, 811863), (324, 791817), (351, 730908), (468, 548181), (474, 541242), (486, 527878), (514, 499122), (702, 365454), (711, 360828), (771, 332748), (948, 270621), (972, 263939), (1027, 249804), (1028, 249561), (1053, 243636), (1404, 182727), (1422, 180414), (1542, 166374), (2054, 124902), (2106, 121818), (2133, 120276), (2313, 110916), (2844, 90207), (3081, 83268), (3084, 83187), (3159, 81212), (3341, 76788), (4108, 62451), (4212, 60909), (4266, 60138), (4626, 55458), (6162, 41634), (6318, 40606), (6399, 40092), (6682, 38394), (6939, 36972), (8532, 30069), (9243, 27756), (9252, 27729), (10023, 25596), (12324, 20817), (12636, 20303), (12798, 20046), (13364, 19197), (13878, 18486)]