256290696

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:548

約数の個数: 128

約数和(自身を含む): 755568000

約数和(自身を除く): 499277304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 108, 114, 152, 171, 197, 216, 228, 317, 342, 394, 456, 513, 591, 634, 684, 788, 951, 1026, 1182, 1268, 1368, 1576, 1773, 1902, 2052, 2364, 2536, 2853, 3546, 3743, 3804, 4104, 4728, 5319, 5706, 6023, 7092, 7486, 7608, 8559, 10638, 11229, 11412, 12046, 14184, 14972, 17118, 18069, 21276, 22458, 22824, 24092, 29944, 33687, 34236, 36138, 42552, 44916, 48184, 54207, 62449, 67374, 68472, 72276, 89832, 101061, 108414, 124898, 134748, 144552, 162621, 187347, 202122, 216828, 249796, 269496, 325242, 374694, 404244, 433656, 499592, 562041, 650484, 749388, 808488, 1124082, 1186531, 1300968, 1498776, 1686123, 2248164, 2373062, 3372246, 3559593, 4496328, 4746124, 6744492, 7119186, 9492248, 10678779, 13488984, 14238372, 21357558, 28476744, 32036337, 42715116, 64072674, 85430232, 128145348, 256290696]

約数ペア:

[(1, 256290696), (2, 128145348), (3, 85430232), (4, 64072674), (6, 42715116), (8, 32036337), (9, 28476744), (12, 21357558), (18, 14238372), (19, 13488984), (24, 10678779), (27, 9492248), (36, 7119186), (38, 6744492), (54, 4746124), (57, 4496328), (72, 3559593), (76, 3372246), (108, 2373062), (114, 2248164), (152, 1686123), (171, 1498776), (197, 1300968), (216, 1186531), (228, 1124082), (317, 808488), (342, 749388), (394, 650484), (456, 562041), (513, 499592), (591, 433656), (634, 404244), (684, 374694), (788, 325242), (951, 269496), (1026, 249796), (1182, 216828), (1268, 202122), (1368, 187347), (1576, 162621), (1773, 144552), (1902, 134748), (2052, 124898), (2364, 108414), (2536, 101061), (2853, 89832), (3546, 72276), (3743, 68472), (3804, 67374), (4104, 62449), (4728, 54207), (5319, 48184), (5706, 44916), (6023, 42552), (7092, 36138), (7486, 34236), (7608, 33687), (8559, 29944), (10638, 24092), (11229, 22824), (11412, 22458), (12046, 21276), (14184, 18069), (14972, 17118)]