221249728

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:318

約数の個数: 112

約数和(自身を含む): 526694400

約数和(自身を除く): 305444672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 89, 112, 124, 178, 179, 217, 224, 248, 356, 358, 434, 448, 496, 623, 712, 716, 868, 992, 1246, 1253, 1424, 1432, 1736, 1984, 2492, 2506, 2759, 2848, 2864, 3472, 4984, 5012, 5518, 5549, 5696, 5728, 6944, 9968, 10024, 11036, 11098, 11456, 13888, 15931, 19313, 19936, 20048, 22072, 22196, 31862, 38626, 38843, 39872, 40096, 44144, 44392, 63724, 77252, 77686, 80192, 88288, 88784, 111517, 127448, 154504, 155372, 176576, 177568, 223034, 254896, 309008, 310744, 355136, 446068, 493861, 509792, 618016, 621488, 892136, 987722, 1019584, 1236032, 1242976, 1784272, 1975444, 2485952, 3457027, 3568544, 3950888, 6914054, 7137088, 7901776, 13828108, 15803552, 27656216, 31607104, 55312432, 110624864, 221249728]

約数ペア:

[(1, 221249728), (2, 110624864), (4, 55312432), (7, 31607104), (8, 27656216), (14, 15803552), (16, 13828108), (28, 7901776), (31, 7137088), (32, 6914054), (56, 3950888), (62, 3568544), (64, 3457027), (89, 2485952), (112, 1975444), (124, 1784272), (178, 1242976), (179, 1236032), (217, 1019584), (224, 987722), (248, 892136), (356, 621488), (358, 618016), (434, 509792), (448, 493861), (496, 446068), (623, 355136), (712, 310744), (716, 309008), (868, 254896), (992, 223034), (1246, 177568), (1253, 176576), (1424, 155372), (1432, 154504), (1736, 127448), (1984, 111517), (2492, 88784), (2506, 88288), (2759, 80192), (2848, 77686), (2864, 77252), (3472, 63724), (4984, 44392), (5012, 44144), (5518, 40096), (5549, 39872), (5696, 38843), (5728, 38626), (6944, 31862), (9968, 22196), (10024, 22072), (11036, 20048), (11098, 19936), (11456, 19313), (13888, 15931)]